For decades scientists have been perplexed by different circumstances surrounding families with rare, early-onset auditory neuropathy (deafness). In some families, parents and grandparents of the proband have normal hearing, while in other families, a number of affected (deaf) family members are scattered throughout the pedigree, appearing in every generation.

Required:
Assuming a genetic cause for each case, offer a reasonable explanation for the genetic origin of such deafness in the two types of families.

Answers

Answer 1

Deafness in the two types of families occurs through a recessive gene.

What Heredity?

Heredity is the transmission of inherited characters from parents to offspring through the genes.

Inherited traits may be due to dominant or recessive genes.

Triats inherited through dominant genes are always expressed in every generation.

Triats inherited through recessive genes do not always appear one every generation.

Since deafness appears in some members of the family and not in others, it means that deafness is inherited through recessive genes.

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Related Questions

Which characteristics do all Protista have in common?

A. They are all autotrophic and mobile.

B. They are all heterotrophic and produce spores.

C. They are all parasites and reproduce s3xually or as3xually.

D. They all lack cell specialization and prefer moist environments.

Answers

None of the given options accurately describes characteristics that all Protista share in common. The Protista kingdom is characterized by its diversity and encompasses a wide range of organisms with varying characteristics, including modes of nutrition, mobility, reproduction, and habitat preferences.

Among the given options, none of them accurately describes characteristics that all Protista share in common. The Protista kingdom is a diverse group of eukaryotic organisms that do not form a natural taxonomic group. However, there are some general characteristics that are commonly observed within this kingdom.

Option A: They are all autotrophic and mobile. This is incorrect because Protista include both autotrophic (e.g., algae) and heterotrophic (e.g., protozoa) organisms. Additionally, not all Protista are mobile.

Option B: They are all heterotrophic and produce spores. This is incorrect because, as mentioned earlier, Protista include both autotrophic and heterotrophic organisms. Additionally, not all Protista produce spores.

Option C: They are all parasites and reproduce sexually or asexually. This is incorrect because not all Protista are parasites, and their modes of reproduction can vary widely.

Option D: They all lack cell specialization and prefer moist environments. This is incorrect because some Protista do exhibit cell specialization, and while many prefer moist environments, there are also Protista that inhabit diverse habitats such as marine, freshwater, and even terrestrial environments.

In conclusion, none of the given options accurately describes characteristics that all Protista share in common. The Protista kingdom is characterized by its diversity and encompasses a wide range of organisms with varying characteristics, including modes of nutrition, mobility, reproduction, and habitat preferences.

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Which choice is right??

Answers

Answer:

E

Explanation:

Denaturing is caused by extreme heat- NOT cold. So when you heat up a protein, its 3d shape is affected, it becomes straight and it cannot be reversible.

Which of the following is true about the Calvin cycle?


Rubisco fixes O2 to a carbohydrate molecule.

Both ATP and NADPH are needed to make sugars.

Light energy is converted to chemical energy.

Answers

Answer:

Both ATP and NADPH are needed to make sugars

The true statement about the Calvin cycle is: Both ATP and NADPH are needed to make sugars.

CALVIN CYCLE:

The Calvin cycle is also known as light independent reactions or dark reaction of photosynthesis.

It is the second stage of the photosynthetic process where glucose is synthesized. The Calvin cycle makes use of the products of the light dependent reaction namely: ATP and NADPH.

ATP and NADPH are used to synthesize glucose molecule. In the process of Calvin cycle, carbon dioxide (CO2) is fixed and not oxygen.

Therefore, the true statement about the Calvin cycle is: Both ATP and NADPH are needed to make sugars.

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A classmate claims that al. Mutations are harmful and can be passed on. Is that true

Answers

Answer:

not all mutations are harmful, some mutations are actually for the better but i think they can sometimes be passed on

Explanation:

hope it helps sorry if it doesnt

Compare the synthesis, storage transport of location of receptors and cellular mechanism of action catecholamine, thyroid, peptide and steroid hormones.

Answers

Peptide hormones are generated in the endoplasmic reticulum. Moreover, steroid hormones are generated in the endoplasmic reticulum and mitochondria.

What are peptide and steroid hormones?

Peptide hormones are hormones composed of amino acids, whereas steroid hormones are composed of lipids.

Peptide hormones are generated in the ER and then transported to the Golgi apparatus to be included in secretory vesicles for secretion.

Steroid hormones aren't stored in secretory vesicles and are transported by using serum proteins in the blood.

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All gymnosperms have ___.

A) eukaryotic cells

B) prokaryotic cells

C) cells without defined nuclei

D) cells without organelle

Answers

Explanation:

A) eukaryotic cells is the answer

What patterns in the data are relevant to deciding whether the species are the same or different, but do not support your claims? Why are these sources of data in general important to scientists in determining common ancestry?

Answers

Gene sequences provide one of the most compelling arguments for shared descent. Comparative sequence analysis looks at how the DNA sequences of several species relate to one another.

Is there a pattern to evolution?

The patterns that evolution might take over time can vary. Predation pressures and environmental factors can influence how animals exposed to them evolve in different ways. illustrates the three primary types of evolution: parallel, convergent, and divergent.

What patterns may be utilised to determine shared ancestry?

By contrasting the macroscopic appearance of diagrams or photographs, it is possible to deduce general patterns of relatedness among embryos of various animals. It is possible to find patterns of resemblance in the embryological development of many species using visual data.

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answer the following ​

Answers

Answer:

Figure A is self-pollination, also known as autogamy because the transfer of pollen from the anther to the stigma is taking place on the same flower.

Figure B is cross-pollination, also known as xenogamy because the transfer of pollen occurs from the anther of one flower to the stigma of another flower.

What are the steps of stellar evolution of a high mass star.

Answers

Answer:

The exact stages of evolutions are: Subgiant Branch (SGB) - hydrogen shell burning - outer layers swell. Red Giant Branch - helium ash core compresses - increased hydrogen shell burning. First Dredge Up - expanding atmosphere cools star - stirs carbon, nitrogen and oxygen upward - star heats up.

what evidence is there that competition with gray squirrels is responsible for the decline in red squirrels in the UK

Answers

There are currently three schools of thought on the subject: Greys are actively fighting and driving out Reds; Greys are out-competing Reds for food, space, breeding sites, and so on; and Greys are spreading disease that is killing off Reds.

4. What kind of symmetry do Poriferans have?
a. Bilateral
b. Radial
c. Asymmetry (None)
d. All of these are correct

Answers

Answer:

I think the answer is C.

Explanation:

I hope this helps.

An energy transformation occurs when energy changes from one form into another form.

True
False

(sorry about the subject i cant find science)

Answers

Answer:

Explanation:

True

Which of the following is true regarding binary fission?

Answers

Answer:

B.) The circular chromosome is replicated

Explanation:

A.) is incorrect because the cell cycle only applies to cells which go through mitosis

B.) is correct because binary fission takes place in bacteria (prokaryotes). These cells have circular DNA which duplicates during binary fission.

C.) and D.) are incorrect because these processes take place during mitosis, a different type of cell replication from binary fission.

The circular chromosome is replicated is the correct answer.

What is binary fission?

The cell cycle only applies to cells which go through mitosis. Binary fission takes place in bacteria which are prokaryotes. These cells have circular DNA which duplicates during binary fission. We know that mitosis is a different type of cell replication from binary fission.

In conclusion, the circular chromosome is replicated is the correct answer.

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how is earth most likely to change in a place that experiences extensive animal activity​

Answers

Answer:

Sand dunes will be formed due to deposition of sediments. Soil will loosen due to vast network of underground tunnels. Cracks will appear in rocks due to freezing and thawing of water.

The answer pls go quick and just 1,2,3,4

Answers

Answer:

1. Metaphase

2. Anaphase

3. Telophase

4. Cytokinesis

Examine the layers of rock. Identify and explain which layer contains the oldest fossils.

Answers

Answer: D

Explanation:

The oldest layers are on the bottom, and the youngest layers are on the top. Because sediments sometimes include once-living organisms, sedimentary rock often contains a lot of fossils. Fossils are once-living organisms that have been turned into rock, in which the shape or form of the organism can still be seen.

give brainliest i dont have it yet

In river valleys, cliffs, hillsides, and man-made exposures like quarries and road cuttings, sedimentary rocks of the appropriate age are exposed, Thus, option D is correct.

What is sedimentary rock?

The bottom has the oldest layers, while the top has the newest layers. Sedimentary rock frequently contains a significant amount of fossils because sediments may contain once-living animals.

It is possible to see the shape or form of a once-living organism in a fossil, which is an organism that has been preserved in rock. The type of rock in which fossils are most likely to form is sedimentary rock.

The rock strata are named according to the historical period during which they were formed, and they are arranged from oldest at the bottom to youngest at the top.

Therefore, bottom layer contains the oldest fossils.

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Why is crop rotation beneficial for maintaining an appropriate nutrient supply

Answers

Answer:

Some plants absorb all the nutrients in the soil, like the cotton plant, and some return them to the soil, like peanuts. The latter plants are called nitrogen-fixing plants. Rotating these and the former plants (like cotton), replenishes the nutrients in the soil and creates a healthy agricultural cycle.


Where are fossils found?​

Answers

Answer:

Fossils are mostly found where sedimentary rocks of the right age are exposed, such as river valleys, cliffs and hillsides, and human-made exposures such as quarries and road cuttings.

Explanation:

hope the answer was helpful

How many glucose molecules can be formed by 6 molecules of carbon
dioxide?
o
A. 1
B. 6
Ο Ο O
C. 18
D. 12

Answers

Answer:

a. 1

hope this helps :)

Explanation:

Which played a major role in altering wind patterns and ocean currents?

volcanic eruptions
ice ages
movement of continents
solar flares

Answers

movement of continents are played a major role in altering wind patterns and ocean currents because of the movement of continents changes wind patterns and ocean currents are the tilt of the axis of the earth

[tex]hope \: its \: helpful \: to \: you \: [/tex]

The movement of continents will greatly affect wind patterns and ocean currents because it will alter the speed of the rotation of the earth

What affects ocean currents and wind patterns?

Ocean currents and wind patterns are affected by the following:

shape of the coastline and the seafloor,the rotation of the Earth

When the speed of rotation of the earth varies, it results in great changes in wind patterns and ocean currents.

Therefore, an event such as the movement of continents will greatly affect wind patterns and ocean currents dueto unequal distribution of the mass of the earth

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When a person looks at a bright light, tiny muscles in the eye contract so less light can enter the eye. Which are most likely the characteristics of this muscle? Select three options. nonstriated involuntary voluntary striated attached to skull attached to the eyeball

Answers

Answer:

nonstriated, involuntary, and attached to the eyeball

Explanation:

They are smooth muscles (nonstriated) that are not controlled voluntarily. You don't contract those tiny muscles on your own will when you look at a bright light. It is also attached to the eyeball because it contracts to ensure the least possible amount of light gets to your eye.

Answer:

Nonstriated

Involuntary

attached to the eyeball

Explanation:

I got it correct on Edge.  Hope it helps, have a good day :)

Which of the following are possible benefits of alley cropping in the rainforest

Answers

The advantages of alley cropping include increase diversity and maintenance of soil's nutrients.

What is alley cropping?

Alley cropping is a technique used in crops that involves planting shrubs or trees in organized rows.

What are the advantages?

Some advantages of this system include:

Decreased soil erosion.Nutrients are preserved better because there is a balance between the nutrients taken/given by the trees and those taken/given by the crop.There is a greater diversity because more organisms can thrive in the area.Chemical fertilizers are not required as much as in regular crops.

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Answer:

one.

Which of the following are possible benefits of alley cropping in the rain forest? Select the two correct answers.

increased biodiversity

maintenance of soil's nutrients

2.

Which of the following is a disadvantage of rain forest agroforestry compared to slash-and-burn farming methods?

increased start-up costs

3.

What cost should a farmer consider when deciding whether to adopt intercropping as a sustainable farming practice?

increased labor expenses

Explanation:

this is 200% correct trust me if not thats fine check it yourself and you will see

Select the part whose main job is to store nutrients, water, and waste in an animal cell.
-vacuoles
-chromosomes
-mitochondria
-cell membrane

Answers

Answer:

A.) Vacuoles

Explanation:

A.) is correct because vacuoles are responsible for the storing nutrients, water, and waste.

B.) is incorrect because chromosomes are made primarily of condensed DNA. They exist to make DNA separation during nuclear division more efficient.

C.) is incorrect because the mitochondria is where cellular respiration takes place. This process is necessary for energy production.

D.) is incorrect because cell membranes do not store things. Rather, the cell membrane protects the inside of the cell, allows for the existence of a fixed environment inside of the cell, and facilitates the movement of molecules that wish to enter or leave the cell.

Vacuole is the answer

The planets Hox and Blox are near each other in the Dorgon system. The Dorgons have very advanced technology, and a Dorgon scientist wants to increase the pull of gravity between the two planets.

Which proposals would the scientist make to accomplish this goal? Check all that apply.

decreasing the distance between Hox and Blox
increasing the mass of Hox
increasing the distance between Hox and Blox
decreasing the mass of Blox
increasing the mass of Hox and Blox
decreasing the mass of Hox and Blox

Answers

Answer:

decreasing the distance between Hox and Bloxdecreasing the mass of Hox and Bloxdecreasing the mass of Blox

Explanation:

Decreasing the distance between Hox and Blox will make it easier to increase the pull of gravity between the two planets, because less gravity would be needed to increase the pull of gravity. Hope that made sense. Decreasing the mass of Hox and Blox will decrease the amount of gravity needed to make the pull of gravity stronger. Because decreasing the mass of hox and blox is one of the correct answers ( of course i can't be 100% sure because the grader may be looking for different answers than normal), I am assuming that decreasing the mass of Blox is an answer too. Hope this made sense and helped.

Which of the followings are true or false?

a. You would expect the brachial artery to have a higher pulse rate than the dorsalis pedis artery.
b. You would expect the carotid artery to be stronger than the dorsalis pedis artery.
c. Emotions, such as anger, cause an increase in pulse rate.
d. You would expect the pulse rate to increase in a test subject after five minutes of moderate exercise.
e. You would expect pulse rate to remain the same when the test subject moves from lying down to standing up.

Answers

The statement 'you would expect the brachial artery to have a higher pulse rate than the dorsalis pedis artery' is FALSE. It is a major artery.

What is an artery?

An artery is a major blood vessel that transports oxygen-rich blood to different parts of the body.

The dorsalis pedis artery is a is an artery present in the lower limbs that comes from the anterior tibial artery.

The dorsalis pedis artery is fundamental for transporting oxygen-rich blood to the lower limbs.

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Aquatic organisms maintain a proper water balance by means of

Answers

Answer:

Osmoregulation is how they mantain q proper water balance

Anatomy and
4. In a classic anatomical position, your fingers are
and
to your heart.
superior, medial
lateral; Inferior
posterior; medial
anterior; lateral

Answers

Answer:

lateral; inferior

Explanation:

In anatomical terms:

Superior is towards the head, and inferior is towards the feet.Medial is towards the centre of the body (belly button) whereas lateral is towards the outside of the body (towards the hip bones and arms, for example) Posterior is towards the back (spine), whereas anterior is towards the front (belly)

Therefore, the fingers are lateral (to the side) and inferior (lower) than the heart

What happens at a transform fault?
A. Plates silde along side each other.
B. Magma from below wells up forming new crust.
C. Plates move apart from each other.
D. Plates move together.

Answers

Answer is D. because they move relative to each other

What best describes the association between the carbon cycle, plants, and animals?

Answers

Plants fix carbon and release oxygen, and animals release carbon and use oxygen.

An organism with a allele will only exhibit that allele when a dominant trait is present

Answers

Answer:

True

Explanation:

Are you asking for true of false?

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Friends Ramona and Heather go to different schools. Ramona has math class during first period on each of the 180 days she goes to school. She will be in math class a total of 8640 minutes this year. Heathers school year also has 180 days, but her math class only meets every other day, so her class periods are longer. (One day shell have math class, and then the next day she wont.) If Ramona and Heather end up with the same number of minutes of math class each year, how long are the class periods at Heathers school?it asks to show work A 120 kg box is on the verge of slipping down an inclined plane with an angle of inclination of 47. What is the coefficient of static friction between the box and the plane? The UNICF estimates that each day up to 30,000 children die due to poverty.TrueFalse Which organelle stores genetic information? (4 points)ChloroplastGolgi apparatusNucleusRibosome There are 1,032 souvenir paperweights that need to be packed in boxes. Each box will hold 11 paperweights. How many boxes will be needed? 12. What are the top 3 most common new case cancer types? What are the top 3 mostcommon causes of death cancer types?Your answerPLEASE HELP ASAP Using Probability to Make InfeThe cartogram on the right depicts thenumber of births per state in 2011. Use itto answer the questions.1. What is the percent chance that a UScitizen born in 2011 was born inTexas? (1-cos^2 60)+(1-sin^2 60)=tan^2 60 Which part of the wave does the arrow point to?A. RarefactionB. CrestC. FrequencyD. TroughHelp me ASAP please Patty walked 2/5 of a mile in 5 1/2 minutes. At this rate, how long will it take Patty to walk 3 miles? Tell whether it is possible to draw a triangle with the given side lengths.a. 3 in., 4 in., 5 in.b. 1 cm, 7 cm, 8 cmc. 3 ft, 5 ft, 9 ft Write the importance of the federal system of government In Microsoft PowerPoint, a _____ gives viewers a visual image of data, such as a line graph or a three-dimensional bar graph, instead of just numbers listed in a table. ______involves the partial or complete separation of tissue or a limb from the body? b. What value of x will make the equation f(x) = 22 true? ill mark brainlest to whoever answers this question first! :) Han and Leia Solo have been married for 24 years and have three children who qualify as their dependents (Jacen, 4; Jaina, 14; and Ben, 16). The couple received salary income of $354,600. They sold some stock they had owned for 4 years and had an $8,000 gain on the sale. They also received $3,000 of corporate bond interest and $6,400 of interest from Jabba City bonds. The Solos also cashed in a Certificate of Deposit early during the year and paid a $950 penalty on the early withdrawal. Additionally, Han (who teaches middle school) spent $875 on supplies and snacks for his classroom. The Solos accumulated $30,920 of itemized deductions and they had $31,550 withheld from their paychecks for federal income taxes.a. gross income b. deductions for AGI c. adjusted gross income d. standard deduction e. itemized deductions f. taxable income g. tax liabilityRequired:Use the table below to show what you did and did not include in Gross Income, Deductions and/or other items and your explanation. Feel free to add additional rows as necessary.Item amount explanation ive been on this question for 22 minutes please help me what is l4x-4l+10=3x Which of the following expressions is equivalent to 9x2 - 4 ?