Differences between Mitosis and Meiosis

Q.

What is the significance of mitosis?

Q.

The number of chromatids in anaphase is

1. 1 in mitosis and 1 in meiosis

2. 2 in mitosis and 2 in meiosis

3. 1 in mitosis and 2 in meiosis

4. 2 in mitosis and 4 in meiosis

Q.

Draw a labeled diagram of the mature embryo sac of angiosperms.

Q. Assertion: Mitosis is known as equational division and meiosis is known as reduction division.
Reason: During meiosis, the non-sister chromatids of homologous chromosomes cross-over and exchange genetic information. This step does not occur during mitosis.

1. Both the assertion and reason are true and the reason is the correct explanation of the assertion
2. Both the assertion and reason are true but the reason is not the correct explanation for the assertion
3. The assertion is true but the reason is false
4. The assertion is false but the reason is true

Q. If the haploid number of chromosomes in Pinus is 12, what will be the number of chromosomes in its (i) root and (ii) endosperm?

1. 12, 12
2. 12, 24
3. 24, 12
4. 24, 36

Q. The number of chromosomes in the shoot tip cells of a maize plant is 20 .the number of chromosomes in the micro spore mother cells of the same plant shall be

Q.

How many daughter cells are in mitosis?

Q. Which of the following statements is true?
(i) Mitosis is preceded by one cycle of DNA replication and meiosis is preceded by two cycles of DNA replication.
(ii) In sexually reproducing organisms, meiosis is the only type of cell division observed.
(iii) Meiotic cell division is essential for the production of haploid gametes.

1. Only (iii)
2. All three statements are true
3. Only (i)
4. Both (i) and (iii)

Q.

Is meiosis 1 or 2 more like mitosis?

Q.

Which is the first stage of Karyokinesis of Mitosis?

Q. A few differences between mitosis and meiosis have been given in the table below. Fill in the blanks using the options given.

$\begin{array}{ccc}& \text{Mitosis}& \text{Meiosis}\\ \text{Number of cell divisions}& 1& \text{(i)}\underset{–}{}\\ \text{Recombination of genetic material}& \text{(ii)}\underset{–}{}& \text{(iii)}\underset{–}{}\\ \text{Ploidy of the parent cell}& \text{2n}& \text{2n}\\ \text{Ploidy of the daughter cells}& \text{2n}& \text{(iv)}\underset{–}{}\end{array}$

1. (i) - 2; (ii) - Absent; (iii) - Present; (iv) - 2n
2. (i) - 1; (ii) - Present; (iii) - Present; (iv) - n
3. (i) - 1; (i) Absent; (iii) - Present; (iv) - 2n
4. (i) - 2; (ii) - Absent; (iii) - Present; (iv) - n

Q.

Are dead cells replaced by mitosis?

Q.

If we ignore the effect of crossing over how many different haploid cells arise in meiosis in a diploid cell having 2n=12?

A)16

B)8

C)32

D)64

I need the explanation too:)

Q.

The major importance of meiosis lies in:

1. Development of mutations

2. Sexual reproduction

3. It transfers chromosomes through mitosis

4. It maintains chromosomes number generation after generation

Q.

Do plants go through Meiosis?

Q. Meiosis II resembles mitosis except that:

1. Unlike that of mitosis, metaphase II of meiosis II does not involve alignment of the chromosomes on the equator of the cell
2. Unlike that of mitosis, prophase II of meiosis II is not preceded by doubling of DNA content
3. Unlike that of mitosis, anaphase II of meiosis II does not involve separation of sister chromatids
4. Unlike that of mitosis, telophase II of meiosis II does not involve cytokinesis

Q. If the number of chromosomes in root of maize is 20 then the number of chromosomes are 10 and 30 in _______ and ________ respectively.

1. male gametes and endosperm
2. nucellus and pollen grain
3. endosperm and pollen grain
4. embryo sac and central cell

Q.

How blastomere is formed?

Q. In our body, ________ is a process by which dead cells are replaced, whereas ________ is a process by which gametes are formed.

1. meiosis; mitosis
2. mitosis; meiosis
3. meiosis; meiosis
4. mitosis; mitosis

Q.

Why is meiosis referred to as an antithesis of fertilization?

Q.

What happens to the haploid nuclei after meiosis ll?

Q.

Name the fusion product of male and female cells.

Q.

Is meiosis 2 shorter than typical mitosis?

Q.

Question 40
Differentiate between the events of mitosis and meiosis.

Q. Write notes on significance of mitosis/ significance of meiosis ?

Q. Pick the correct statements.
A. Synapsis of homologous chromosomes takes place during prophase I of meiosis.
B. Division of centromeres takes place during anaphase I of meiosis.
C. Spindle fibres disappear completely in telophase of mitosis.
D. Nucleoli reappear at telophase I of meiosis.

1. C only
2. A only
3. A and B only
4. A, C and D only
5. A and C only

Q. What is the significance of meiosis? How does meiosis differ from mitosis?

Q. In a comparative study of similar events in Mitosis and Meiosis; the number of Chromosomes is (i)______ and represents two different sets from each (ii)______.

1. Parent Constant

2. Constant Parent

3. Variable Father

4. Variable Mother

Q. Match the following differences between Mitosis and Meiosis:

Column I	Column II
i) Mitosis	a. Two Diploid daughter cells are formed.
ii) Meiosis	b. Four Haploid daughter cells are formed.
	c. The number of chromosomes remains the same.
	d. Bivalents are formed and crossing over is seen.
	e. Division process occurs twice.
	f. Division process occurs only once.

1. i).➡ a., b., & c. ii).➡ d., e., & f.

2. i).➡ d., e., & f. ii).➡ a., b., & c.

3. i).➡ a., c., & f. ii).➡ b., d., & e.

4. i).➡ b., d., & e. ii).➡ a., c., & f.

Q. Explain why mitosis is called equational and meiosis is called reductional division?