Meiotic Cell Division

Q.

Why the chromosomes number has reduced into half in daughter cells during meiosis division?

Q.

What is the importance of MMC undergoing meiosis?

Q.

What are two main functions of meiosis?

Q.

If a pea plant has 14 chromosomes in the daughter cells after mitosis, how many chromosomes were initially present in that cell before entering into cell division?

1. 11

2. 28

3. 7

4. 14

Q.

Does DNA replication occur before mitosis?

Q.

Name the organelle which initiates the cell division in animal cell.

Q.

The fusion of male and female gametes is called as

1. Mitosis

2. Meiosis

3. Fertilisation

4. Reduction division

Q.

During meiosis, the female germinal cell produces one large ovum and 3 smaller cells, which are known as ___.

1. polar body

2. sperms

3. ovum

4. germinal cells

Q.

What is the number of chromosomes in the daughter cells formed after meiosis I?

1. 23

2. 46

3. 22

4. 44

Q.

What are the 2 types of cell division in the human body?

Q.

In human beings, the correct sequence of events during reproduction is

1. Gamete formation, fertilisation, zygote, embryo

2. Embryo, zygote, fertilisation, gamete formation

3. Fertilisation, gamete formation, embryo, zygote

4. Gamete formation, fertilisation, embryo, zygote

Q.

Select the correct statement about meiosis from the options given below.

1. It helps the organism to cope up with the harsh environment.

2. It produces exactly the same set of chromosomes in the nuclei.

3. It produces more set of chromosomes in the nuclei.

4. It produces two nuclei with half the haploid number of chromosomes.

Q. Question 9
After fertilization, the resulting cell which gives rise to a new individual is the

(a) embryo
(b) foetus
(c) ovum
(d) zygote

Q.

Complete the flow chart given below.

Zygote ---> Division of zygote ---->? -----> Infant ----> Adult

1. Sperm

2. Foetus

3. Embryo

4. Ovum

Q. Select the correct statement about mitosis:

1. The daughter cells are identical to the parent cell and each other.
2. The daughter cells are very different from the parent cell and each other.
3. The daughter cells are identical to the parent cell but very different from each other.
4. The daughter cells are different from the parent cell but identical to each other.

Q.

In order for the human population to achieve zero population growth which of the following must occur?

1. There must be the same number pre reproductive individuals as there are reproductive individuals

2. All of these

3. There must be more pre reproductive than reproductive individuals

4. There must be more post reproductive individuals than reproductive individuals

Q.

The technical term for the fertilized egg is

1. Placenta

2. Zygote

3. Morula

Q.

How many chromosomes are found after meiosis I and meiosis II, during the process of gametogenesis in human females?

1. 46, 23

2. 46, 46

3. 23, 46

4. 23, 23

Q.

Name two kinds of Cell division ?

Q.

How many stages are there in mitosis?

Q.

How is embryo formed in human female?

Q.

What is meiosis ? define

Q.

Question 05
Give two differences between a zygote and a foetus.

Q.

Why is Meiosis called Reductional division?

Q. With respect to the following statements, choose the correct answer.

Statement 1: Meiosis takes place in asexual reproduction.
Statement 2: Mitosis produces the sex cells called gametes.

1. Both the statements are correct
2. Both the statements are incorrect
3. Only statement 2 is correct
4. Only statement 1 is correct

Q.

Which life process ensures that human species will not disappear from this earth?

1. Reproduction

2. Digestion

3. Locomotion

4. Respiration

Q. Which of the following is true about meiotic divisions?

1. Meiosis-I is reductional and meisois-II is equational
2. Meiosis-I is equational and meiosis-II is reductional
3. Both meiosis-I and meiosis-II are reductional
4. Both meiosis-I and meiosis-II are equational

Q.

Find the correct match from the following:
$\begin{array}{cc}\text{Column A}& \text{Column B}\\ 1.\text{Male gamete}& \text{a}.46\text{chromosomes}\\ 2.\text{Female gamete}& \text{b}.\text{Sperm}\\ 3.\text{Diploid human cell}& \text{c}.\text{Chromosome number reduced to half}\\ 4.\text{Meiosis}& \text{d}.\text{Egg}\end{array}$

1. 1-b, 2-a, 3-d, 4-c
2. 1-b, 2-d, 3-a, 4-c
3. 1-d, 2-a, 3-b, 4-c
4. 1-d, 2-b, 3-a, 4-c

Q.

Say True or False
The male gamete with Y chromosome fuses with a female gamete to form a zygote. The offspring will be a male child.

1. True

2. False

Q. How many organisms are involved in asexual reproduction?

1. One
2. Two
3. Three
4. Four