How many different gametes can be produced by a tall, yellow-seeded, purple-flowered, and wrinkled-seeded pea plant (TtYyPprr)?
A 2
B 4
C. 6
D. 8​

Answer:

I think it could be either C or D

Six different gametes can be produced by a tall, yellow-seeded, purple-flowered, and wrinkled-seeded pea plant (TtYyPprr). Thus, option C is correct.

The genotype of the plant with yellow round seeds will be YYRR and produce YR gametes, while the genotype of the plant with green wrinkled seeds will be yyrr and produce yr gametes.

A true breeding plant always has identical alleles of a gene and is homozygous in nature. The genotype of the true-breeding parents with yellow round peas: YYRR. The genotype of the pure breeding parent plant with green wrinkled peas: yyrr.

Gametes are always pure which means that a gamete carries only one allele of a gene. Since both the parent plants are true breeding, there will not be any segregation of alleles during gamete formation. Therefore, the parent plant with yellow round peas "YYRR" would form all the gametes with "YR" alleles while the parent plant with green wrinkled peas "yyrr" would form all the gametes with "yr" alleles.

Therefore, Six different gametes can be produced by a tall, yellow-seeded, purple-flowered, and wrinkled-seeded pea plant (TtYyPprr). Thus, option C is correct.

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8. Which of the following shows an example of extinction?

A: Two species of caterpillars compete for the same food
B: Two species of caterpillars breed to create a new species
C: A generation of caterpillars all metamorphosize into butterflies
D: An entire species of caterpillar dies off

10. An automobile headlight has a resistance of 40 ohms when attached to a standard 12 volt battery. How much current flows through the headlight?

// Please help !!!!!!!!!!

Which of the following cannot reliably prevent the impact of hurricanes on hurricane-prone places?

A)

restoring freshwater marshes

B)

allowing the growth of a natural buffer of trees

C)

completely preventing settlements in areas that seem prone to catastrophes

D)

encouraging people to avoid settling in areas known to be hazardous

E)

using satellite images to predict hurricanes

Please help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

which of the following is NOT part of the First Line of Defense?
A vomiting
B phagocytes
c) sebum (oil on skin)
D) flow of urine
E cilia

What determines if the drake has a beard or does not have a beard?​

How can you prevent oxygen toxicity?

A cell has undergone determination to become an epithelial lung cell. If it is transplanted to a leg muscle, what do you think will happen to this cell?

*
Which example is NOT an outcome of the ecosystem modifying a phenotype?
A.the changing of the color of an animal's fur as the temperature changes
B.the increased intelligence of a person who attended school for many years
C.the pink-flowered snapdragons that result from crosses between red-flowered and
white-flowered snapdragon plants
D.the very short stature of a kind of tree that grows at a high altitude in comparison with
the same kind of tree growing at a lower altitude

Answer the following. The first to answer corectly and provide relevent evedence will
be potentaly be given a heart, five stars, and branleist. the querstions are;

___________________ is the study of heredity.

An organism that has a __________ gene pair will always have two genes for a particular trait.

The _________________________ is a chart used to predict the traits for the offspring from a cross.

a characteristic that is not passed from one generation to the next in the genes but instead is acquired during the lifetime of an individual is called what.

A gene in a gene pair that is always expressed

The science of heredity; the study of how traits are passed from parent(s) to offspring

When both genes from a homologous pair are identical

Factors in the environment of an organism that limit the full expression of a gene

When both genes from a homologous pair are different

Two similar chromosomes; one from the mother and one from the father

The links that hold the two sides of the DNA molecule together

n the picture below, what are biotic factors?

fill the vocab
biology

The least specific level of classification is:
A.Phylum
B.Domain
C.Order
D.Genus

A murder occurs in a nursing home during a night full of thunderstorms and pouring rain. The victim is discovered lying on the plush carpet of the rec room, bleeding from a wound to the head. The staff assures investigators that there must have been a break-in because no one who lived or worked at the facility would do something like that. Considering the Principles of Trace Evidence, what would investigators be looking for to prove that someone entered from outside the facility?

Muddy or wet footprints in the carpet
The discovery of a murder weapon
Letters to the victim from a sick relative
Blood spatter from the victim's head wound

Lichens are actually made of two organisms: algae and fungi. The algae provide food for the fungus, while the fungus provides protection for the algae. This type of relationship is known as:
Predation
Parasitism
Mutualism
Commensalism

Select the true statements about mitosis and meiosis
Mitosis creates haploid cells
Mitosis creates cells with a complete set of genetic instructions
Meiosis create diploid cels
Meiosis creates cells with a complete set of genetic instructions
o Meiosis creates haploid cells
Mitosis creates diploid cells

natural selection compared to evolution

Because of base pairing in DNA, the percentage of

How to write 778,00,000 in scientific notation

Identify the phases of the eukaryotic cell cycle

Form a hypothesis that explains your choice. You will be able to revise your hypothesis after performing experiments.

9th grade biology
Tell me the answer fast pls

how does the body's organization enable it to function

Can anyone give me an example of Biodiversity

In humans, a sperm cell and an egg cell normally fuse in the upper portion of the what?
​

What is comparative anatomy and how do scientists use it to study evolution?

In a genetic cross between plants, the alleles are denoted as P and p, where P is purple flowers and p stands for white flowers, which one is considered the dominant allele for flower color?

Which of the following describes positive feedback?
Select one:

A. A loss of output from the body’s receptors.

B. The response of the body to increased temperatures.

C. An event that reduces the effects of a stimulus.

D. An event that enhances the original stimulus.

Having dimples (D) is dominant over not having dimples (d). If a person that is Dd has children with a person that is dd, what would be their children’s possible genotypes?

a
DD, Dd
b
Dd, dd
c
dd, DD
d
Dd, DD, dd