Biology High School

PLEASE answer all these questions if you can. 1 attempt for all

1.) Which of the following is true about prophase?


chromatin changes into chromosome form

all of the choice occur during prophase

chromosomes line up at the equator of the cell

cytokinesis occurs

2.) Which of the following is true about metaphase?


chromatin changes into chromosome form

chromosomes line up at the equator of the cell

all of the choice occur during metaphase

nucleolus disappears

3.) Which of the following describes the products of mitosis?


one cell identical to the parent

cell death

two unique cells

two daughter cells that have identical DNA to the parent

4.) What is the role of the spindle during cell division?


to separate the chromosomes

to break down the nuclear membrane

to divide the cell in half

to duplicate the DNA

5.) In what phase of mitosis are chromosomes first visible?


Interphase

Prophase

Telophase

Metaphase

6.) A centromere


holds two sister chromatids together

is an unduplicated chromosome

is half of a duplicated chromosome

forms the spindle fibers

7.) In which phase of meiosis would you see crossing over occur?


Anaphase I

Prophase I

Anaphase II

Prophase II

8.) Oogenesis produces __ viable cell/s, and spermatogenesis produces __ viable cell/s.


4, 2

4, 1

4, 4

1, 4

9) Haploid gametes produced in males are called sperm.


True

10.) Which of the following best describes a tetrad?


the spindle fibers at the end of telophase I

the four cells resulting from meiosis

homologous chromosomes during prophase I

tetrads are not present in meiosis, they are present mitosis
False

Answers

Answer 1

Answer:

1. a

2. b

3. d

4. a

5. b

6. d

7.b

8. im not sure abt this one, sry :(

9. yeah, true

10. c

Explanation:

Answer 2

Pro phase is the starting stage of the division where the cell division begins. Spindle fibers  are broken into half and the type of division that is present in gametes is reduction division that is the meiosis. Synapsis occurs during mitosis.

What is synapsis ?

It is defined as the stage in which the pairing of the homologous chromosomes take place.

Chromosomes do not line at the equator as the lining of the chromosomes at the equator occurs on the stage of mitosis where it is possible to see the V,J and L shapes of the paired chromosomes. After this stage the exchange of genetic material takes place.Chromatin do not change into chromosomes in the metaphase.

Mitosis is present only to make the duplicate copies of the cell. The identical daughter cells are made when the division of mitosis is taking place in the cell. Chromosomes are first visible in the prophase. A centromere holds two sister chromatids together.

In meiosis crossing over takes place in anaphase 1.

Learn more about mitosis at :

https://brainly.com/question/26678449

#SPJ6

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hope it helps you

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