BIOLOGY HIGH SCHOOL

If a plant that is heterozygous for seed color is crossed with a plant that is homozygous recessive for seed color, what would be the resulting genotypes and phenotypes of the offspring? (Y= Yellow Seed Coloration, y = Green Seed Coloration)

Answers

Answer 1
Answer: It would be Yy crossed with yy and you would have Yy,Yy,yy,yy and the phenotype would be Yellow,Yellow,Green,Green.

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What aligns and segregates during meiosis I? What aligns and segregates during meiosis II? In what way is prophase I of meiosis similar to prophase of mitosis? How is it different? In what way is metaphase I of meiosis similar to metaphase in mitosis? How is it different? Which is more similar to mitosis (meiosis l or meiosis II)? What is the important similarity? What is the significance of meiosis in terms of the genetic content of the cells produced? In terms of the genetic makeup of the whole species? What are two features of meiosis that result in the production of genetically distinct gametes?

Answers

What is the significance of meiosis in terms of the genetic content of the cells produced? 

Meiosis on the other hand is responsible for the cell division of the gametes, spermatogenesis (sperm cells) and oogenesis (egg cells), such haploid cells. Take for instance your integumentary system, layer of the skin in which your stratum basale always produces new epithelial cells (via mitosis) to take over until the outer layer, called stratum corneum (a continous replaced dead cells in this layer). 

Answer:

begin with a single parent cell which eventually splits to form new daughter cells.

Explanation:

Several events happen during sexual reproduction in flowering plants. Put these processes in the correct order, ending with the process seen here.

Answers

Seed-> mitosis-> flower: meiosis -> pollination -> fertilization of the egg cell= embryo -> seed. Repeat.

Answer:

it's B, pollination-fertilization-seed production- germination

Explanation:

Which of the following selection pressures is responsible for the limited evolutionary changes experienced by alligators and other crocodilians?a.

stabilizing selection


b.

directional selection


c.

disruptive selection


d.

high mutation rate

Answers

The answer is a. stabilizing selection. This is the correct answer because genetic phenotype's among alligators and crocodiles were conserved during the evolution of the species. The reptiles have very little phenotypic variation or difference in physical traits, which would is the result of a stabilizing genetic selection process.

Answer:

A

Explanation:

I was taking the test earlier

Which one of the following statements accurately describes a characteristic of adolescence?

Answers

Adolescent or young teenagers like to spend time alone and get adjusted to what is happening with them. Almost all of us experience this kind of situation that we wanted to be alone and think of some stuff. More and more questions are coming to our mind,
If this is the list of answers you've had to choose from:

A. Adolescents tend to break ties with their families. 
B. Most adolescents like to spend some time alone. 
C. Serious teenage rebellion is common to most adolescents. 
D. Teenage boys tend to be more open about their feelings than teenage girls are.

Then the correct answer would be B - most adolescents like to spend some time alone. The reason for this is that adolesence is a time of self-finding and thinking things over about one's life. A lot of people in adolescence need time for themselves for that same reason.

Much like a cell, a virus is able toA. grow and develop.
B. respond to its environment.
C. change over time.
D. obtain and use energy.

Answers

It's C. change over time. Happy to help!

Horses have a gene for coat color. The dominant allele gives a brown coat while the recessive allele gives a white coat. A breeder is crossing a purebred brown horse with a hybrid brown horse. What are the possible phenotypes of the offspring?

Answers

Answer:

they will all be brown horses but only two will have both dominant alleles, the other two will each have one recessive
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