Reproduction
Trending Questions
Q. What is incorrect about mitosis?
- Sexual reproduction occurs by mitosis
- It is not the main reason behind genetic variation
- DNA duplication is involved
- Exact copies are made
Q. What is meiosis?
- Cell division used for asexual reproduction
- Cell division used for growth and development
- Cell division to reduce the number of chromosomes to half
- Cell division to maintain the number of chromosomes
Q. What is the use of meiosis?
- None of the above
- To help organism cope with harsh environment
- To produce exactly same set of chromosomes
- To produce two different haploid set of chromosomes
Q. What is meiosis?
- A type of cell division in which the number of chromosomes is halved in the daughter cells
- A type of cell division used to produce gametes
- None of these
- A type of cell division in which the number of chromosomes remains same in daughter cells
Q. State true or false.
Reproduction is essential for the survival of both - a human being and a bacterium.
Reproduction is essential for the survival of both - a human being and a bacterium.
- True
- False
Q. Select the correct statement about mitosis.
- The daughter cells usually exactly resemble the parent cell and each other
- The daughter cells are usually very different from the parent cell but exactly like each other
- The daughter cells are usually very different from the parent cell and each other
- The daughter cells are usually exactly like the parent cell but very different from each other
Q. What are the changes seen in girls at the time of puberty?
[2 Marks]
[NCERT]
[Secondary Sexual Characters]
[2 Marks]
[NCERT]
[Secondary Sexual Characters]
Q.
Which of the following statement is correct about sexual reproduction?
- Sexual reproduction takes place only in plants
- Meiosis produces gametes for sexual reproduction
- Only multicellular organisms undergo sexual reproduction
- Sexual reproduction takes place in all the organisms
Q. Which of the following cells can be a result of meiotic cell division?
- Zygote
- Hair Cells
- Pollen Grains
- Red Blood Cells
Q. Mitosis cannot result in:
- Asexual reproduction
- Growth
- Repair
- Sexual reproduction