Question
A diploid cell with a diploid number of 24 chromosomes undergoes meiosis. How many chromosomes are present in each daughter cell after division?
36
24
48
12
36
24
48
12
Hint:
Meiosis is called known as reductional division.
The correct answer is: 12
- The first division (meiosis I) is the division in which the number of chromosomes is halved.
- In humans with 23 pairs of chromosomes (2n = 46), the number of chromosomes halves at the end of meiosis I (n = 23).
- Similarly, when the number of chromosomes is 24, the daughter cells will have 12 chromosomes.
Related Questions to study
What type of cell division occurs in cells of testes and ovaries?
Mitosis
Interphase
Meiosis
None of the above
What type of cell division occurs in cells of testes and ovaries?
Mitosis
Interphase
Meiosis
None of the above
Meiosis results in _____
2 haploid daughter cells
4 haploid daughter cells
2 diploid daughter cells
4 diploid daughter cells
Meiosis results in _____
2 haploid daughter cells
4 haploid daughter cells
2 diploid daughter cells
4 diploid daughter cells
Meiosis I is reductional division, and meiosis II is equational division because of
Separation of chromatids
The disjunction of homologous chromosomes
Crossing over
The pairing of homologous chromosomes
Meiosis I is reductional division, and meiosis II is equational division because of
Separation of chromatids
The disjunction of homologous chromosomes
Crossing over
The pairing of homologous chromosomes
Meiotic division takes place in
Conductive cells
Vegetative cells
Reproductive cells
Meristematic cells
Meiotic division takes place in
Conductive cells
Vegetative cells
Reproductive cells
Meristematic cells
What is the importance of crossover?
New genetic combinations
For meiosis to occur
To clone a chromosomal segment
Mutation
What is the importance of crossover?
New genetic combinations
For meiosis to occur
To clone a chromosomal segment
Mutation
Which of the following structures are formed by two homologous chromosomes pair during crossing over?
Base Pair
Chromatid
Tetrad
None of these
Which of the following structures are formed by two homologous chromosomes pair during crossing over?
Base Pair
Chromatid
Tetrad
None of these
In prophase I of meiosis I __________ occurs.
Non-disjunction
Separation of homologous chromosomes
Separation of sister chromatids
Crossing over
In prophase I of meiosis I __________ occurs.
Non-disjunction
Separation of homologous chromosomes
Separation of sister chromatids
Crossing over
What structures exchange genetic material during crossing over?
Non-sister chromatids
Non-homologous chromosomes
Sister chromatids
Egg and the sperm
What structures exchange genetic material during crossing over?
Non-sister chromatids
Non-homologous chromosomes
Sister chromatids
Egg and the sperm
What is the evolutionary purpose of cells that undergo crossing over?
Produce genetically identical gametes
Increase genetic diversity
To prevent mutations
Keep the redundancy of the cell high
What is the evolutionary purpose of cells that undergo crossing over?
Produce genetically identical gametes
Increase genetic diversity
To prevent mutations
Keep the redundancy of the cell high
When does chromosomal crossover occur?
Interphase
Meiosis II
Mitosis
Meiosis I
When does chromosomal crossover occur?
Interphase
Meiosis II
Mitosis
Meiosis I
Chromosomal crossover is the natural pairing up and exchanging of genetic material between
Any chromosomes
Homologous chromosomes
Non-homologous chromosomes
Extra-nuclear chromosomes
Chromosomal crossover is the natural pairing up and exchanging of genetic material between
Any chromosomes
Homologous chromosomes
Non-homologous chromosomes
Extra-nuclear chromosomes
Which of the following does not cause variation?
New gene combinations by meiosis
Errors occurring during replication
Mitosis
Mutations caused by environmental factors
Which of the following does not cause variation?
New gene combinations by meiosis
Errors occurring during replication
Mitosis
Mutations caused by environmental factors
What is the structural and functional unit of heredity?
Gene
Chromosome
DNA
RNA
What is the structural and functional unit of heredity?
Gene
Chromosome
DNA
RNA
When does crossing over occur in meiosis?
Metaphase I
Prophase I
Anaphase II
Prophase II
When does crossing over occur in meiosis?
Metaphase I
Prophase I
Anaphase II
Prophase II
