The sperm and the ovum are called haploid (as they have only 23 chromosomes) which is half the number of chromosomes seen in all the other human body cells. What is the significance behind the maintenance of this special chromosomal number in the male and female gametes?

Answers

Answer 1

Answer:

During the process of meiosis(The process of cell division through which the germ cells such as the reproductive cells are formed), the sex cells produced are haploids (have only 23 chromosomes). This is significant as during the process of fertilization, the nucleus of the sperm (containing 23 chromosomes) and the nucleus of an egg (containing 23 chromosomes too) fuse, hence, retaining the original number of chromosomes in the zygote formed. i.e 46 chromosomes.


Related Questions

In a small population of alpine foxes, you observe increased ear length over a 10-year period. Can you conclude that increase in ear length is advantageous in this population

Answers

Answer:

No, I can't conclude that because there are several factors that influence the expression of a trait (for example, gene drift)

Explanation:

There are several factors that affect the genetic variation of a phenotypic trait in populations with small sizes. Genetic drift is an important evolutionary mechanism by which allele frequencies change in populations, and it is well known that the effects of genetic drift are most pronounced in small populations. Moreover, gene flow -or migration- is an evolutionary factor (stronger in small populations) that is also potentially capable of changing allele frequencies and thus contribute to the overall genetic variation of a phenotypic trait. Finally, environmental factors (for example, abiotic and biotic stresses) may also be associated with the variation of a quantitative trait such as, in this case, ear length.

what is transpiration​

Answers

Answer:

the exhalation of water vapor through the stomata.

Explanation:

Answer:

the release of water from plant leaves

Explanation:

Why does a violet flower look violet?
OA. It reflects all colors of light except violet.
O B. It absorbs violet light.
C. It transmits violet light.
OD. It reflects violet light.

Answers

Answer:

It reflects violet light

Explanation:

i just took the test

In your own words, describe how redshift gives evidence that the stars are moving farther and
faster away from Earth. Include the following words in your explanation light, stars, redshift
wavelength, change, distant.

Answers

Answer:

ALL OF THEM

Explanation:

Answer:

all of the above

Explanation:

I will give brailiest to the first person who can get this question correct

What mushroom is it?

A) parasol mushrooms
B) Shaggy parasol
C) Browned mushrooms
D) Toadstool rusty brown​

Answers

Answer:

A

Explanation:

I edited. I first put D if that helpes

Answer:

D

Explanation:

Which of the following stages of photosynthesis involves carbon fixation, reduction reactions, and the ribulose 1,5-bisphosphate regeneration? Olight-dependent reaction first stage photosynthesis Olight-independent reaction O photoreduction​

Answers

Answer:C4 carbon fixation: A form of photosynthesis in which plants concentrate CO2 ... Calvin cycle is organized into three basic stages: fixation, reduction, and regeneration. ... In fixation, the first stage of the Calvin cycle, light-independent reactions are ... the reaction between carbon dioxide and RuBP; ribulose bisphosphate: an ...

Explanation:

Answer:

c4 carbon fixiation

Explanation:

What is the relationship between respiration and cellular respiration?
What is the difference between a partial blockage and an obstruction blockage?
What is the first aid for choking?​

Answers

respiration is when you breath and cellular respiration involves taking the cells from when you breathe and turning it into chemical energy.

partial blockage can be cause by cancer within the bowel area or inflammation within the bowel area. obstruction blockage is caused by tissue compressed in the gut.

for first aid, you turn the individual on their back and deliver 5 back slaps between their shoulder blades, then do 5 chest thrusts.

17. What are some of the major causes of extinction today?

Answers

Pollution
Excessive hunting
Deforestation
Pollution and deforestation

Why is it important to warm up your muscles before a work out

Answers

So you don’t tear any tissue and so they get more elastic.

How is reception different than transduction?

Answers

Answer:

Sensory transduction is the process of converting that sensory signal to an electrical signal in the sensory neuron. The process of reception is dependent on the stimuli itself, the type of receptor, receptor specificity, and the receptive field, which can vary depending on the receptor type.

Explanation:

100 points and brainliest
Quick first to answer this. How old is sir Alex Ferguson

Answers

Answer:

78 years old

Explanation:

he's born in Dec 31 - 1941

The sputum (fluid coughed up from the lungs) of many smokers contain cells with mutations in the genes for p53. The smoking-induced mutations appear to be an early signal showing that cancer of the lungs will follow. What is the likely relationship between early p53 mutation and the development of lung cancer

Answers

Answer:

The correct answer would be - mutations in the p53 would prevent abnormal cells from dying by apoptosis.

Explanation:

P53 or tumor protein 53 gene is the gene that produces a protein that controls DNA repair and apoptosis in the cell cycle if there is an error in the DNA or cells growing abnormally therefore known as tumor suppressor gene.

If there is a mutation in this gene will prevent it from performing its function of DNA repair or stimulating apoptosis and then p53 would prevent abnormal cells from dying by apoptosis.

Thus, the mutation in P53 would lead to the growth or development of lung cancer.

Scientists have observed many types of tropical fish moving beyond their traditional ocean ranges into waters that have historically been more temperate. These fish compete for food with native fish, consuming much from the kelp forests and beds of sea grass. The expansion of the ranges of tropical fish was most likely caused by — *

A-global droughts that raise the salt concentration of ocean waters
B-the rising temperatures of ocean waters
C-agricultural runoff that contributes to dead zones in the ocean
D-acid rain pollution that lowers the pH of ocean waters

Answers

Answer:

Raising Temps

B

Explanation:

can someone help me with these​

Answers

Answer:

chromatid

telophase

cytokinesis

cancer

prophase

interphase

anaphase

mitosis

centriole

Explanation:

It should spell out metaphase

hope this helps :)

i need help this is due to 4:00PM!!
Mai filled two balloons with the same amounts of water, sugar, and yeast. She put one on a table in the classroom. She put the other on a sunny windowsill. Which reasoning explains why Mai observed that the balloon in the window grew larger in size?


The windowsill area is cooler.

The windowsill area is warmer.

The classroom table area is warmer.

The classroom table area is the same temperature as the windowsill.

Answers

Answer:

the windowsill area is warmer

Explain

yeast reacts with heat

the windowsill area is warmer

Explain how water is used to create electricity.

Answers

Answer:

Explanation:Flowing water creates energy that can be captured and turned into electricity.The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.

Answer:

Water can be used in a lot of ways, let say that you have a big paddle by a raging river next to you to power your home, this paddle can keeping continuously moving to power that home based off how much that river is going. This is one way that water can be used to make electricity. Hope this helps, Merry Christmas, and have a nice day!

Explanation:

6. Saturated lipids are “full” or “saturated with the element ___________
and are solid at room temperature.
(Fill in the blank)

Answers

The answer is full I hope this helps

Answer:

Saturated lipids are full of Hydrogen atoms

what two things are made up during photosynthesis?

Answers

Answer:

Oxygen, Carbon dioxide

Explanation:

Its a fact

The other answer is incorrect, the products of photosynthesis are oxygen and glucose (O2/C6H12O6)Carbon dioxide is the reactant along with water and light.

What are some helpful and harmful examples of dna mutations

Answers

Answer:

Examples of helpful mutations embrace HIV resistance, milk sugar tolerance, and colored vision.Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes.

HEYY GUYYYSS Heelppp ILL MARK you BraINLiEST

Answers

Answer:

#1, #2, and #4 are all true. #3 is false

Explanation:

For the decay processes below, describe the following:
• What happens during the decay? Include what happens in the nucleus of the
parent element
What special particle(s) is/are produced, aside from the daughter element?
• How can you use the parent element to determine the daughter element by
referring to the periodic table?
.
a. Alpha decay (3 pts)
b. Beta decay (3 pts.)
c. Gamma decay (3 pts.)

Answers

Pretty sure it B, But double check

please put an explanation will give 25 points and brainliest

Answers

12:00 is the correct answer trust

The expected phenotypic ratio of a dihybrid cross is
9:3:3:1
1:2:2:4:2:2:1:1:1
1:1:1:1:1:2:2 1:4:1:1
8:2:4:1:1

Answers

Answer:9:3:3:1

Explanation: Just took the test!

Answer:

9:3:3:1

Explanation:

How fast can you answer correct..? How fast can i give you brainliest. Explain Your answer:D/ HELP

Answers

B, cooking vegetables on a grill. Conduction is the transfer of heat through two substances who’s materials are touching, and when the vegetables are on the wire of the grill, they’re directly touching it and the heat from it is being transferred into the vegetables, heating them and grilling them.

Which of the cell components is least likely to affect the visible traits of an organism?

F Mitochondria
G Nucleus
H Genes
J Chromosomes

Answers

I think its Mitochondria, because mitochondria doesnt really have a major function when it comes to genes

Answer:

Genes

Explanation:

The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype.

distinguish between a mixture and solution

Answers

Answer:

In mixtures substances are mixed. While in Solutions substances are dissolved.

Explanation:

in mixtures substances arent typically dissolved they are combined or mixed. in a solution those substances dissolve.

In a mixture, substances are generally just mixed and are not completely dissolved. In a solution, substances are dissolved completely and they cannot be filtered out

Please help!
Will mark brainliest!
The picture below shows a galaxy which revolves around a single point and has
spinning arms of stars which extend from the center.
What type of galaxy is shown in the picture?

barred spiral
irregular
spiral
elliptical

Answers

Answer:

It's a spiral galaxy. So c

Answer:

C

Explanation:

Help! Will mark brainiest.

Which of the following are representative organisms?


a. Sponges

b. Cnidarians

c. Roundworms

d. Annelids

e. Mollusks

f. Arthropods

g. Echinoderms

h. Vertebrates

Answers

Answer:

Roundworms

most sensible

A hurricane forms when a
gains strength over ocean waters.
O A. typhoon
B. polar storm
C. occluded front
D. tropical depression

Answers

Answer:

D.

Explanation:

it's a hurricane tropical depression is a storm that turns into a hurricane

A hurricane forms when a tropical depression gains strength over ocean waters.

It is usually accompanied by rain, thunder, and lightning, and that sometimes moves into temperate latitudes.When a hurricane approaches land, tremendous damage can occur to coastal cities and towns. Hurricanes impact natural environments along a coast too.What is tropical depression?

It is a tropical cyclone that has maximum sustained surface winds of 38mph or less.

To know more about tropical depression here

https://brainly.com/question/19737676

#SPJ2

is snail invertebrates animal​

Answers

Answer:

slugs and snails are invertebrates animal

Answer:

invertebrates is snail.

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