Question
______ mutations originate during meiosis while ______ mutation originates during mitosis.
Germinal, somatic
Germinal, spontaneous
Spontaneous, point
Somatic, germinal
Germinal, somatic
Germinal, spontaneous
Spontaneous, point
Somatic, germinal
Hint:
Somatic mutation occurs during zygote formation.
The correct answer is: Germinal, somatic
- Gene mutations that occur in sex cells are called germline mutations. These mutations occur in meiosis, affect all cells in an individual, and pass the mutations on to the next generation.
- We are talking about somatic mutations when the mutation occurs in another somatic cell.
- Somatic mutations arise after zygotogenesis and are present in clones of cells in one or more tissues of the body as they reflect random mutations during normal mitotic cell division of embryonic development.
Related Questions to study
_____________ is the transfer of characters from parents to offspring.
Variation
Inheritance
Mutation
Crossing over
_____________ is the transfer of characters from parents to offspring.
Variation
Inheritance
Mutation
Crossing over
Mitosis is also known as _________________.
Equational division
Reductional division
Additional division
None of the above
None of the above
Mitosis is also known as _________________.
Equational division
Reductional division
Additional division
None of the above
None of the above
Genetic variation is not caused by:
Natural selection
Asexual reproduction
Sexual reproduction
Mutation
Genetic variation is not caused by:
Natural selection
Asexual reproduction
Sexual reproduction
Mutation
Crossing over occurs in which phase?
Prophase II
Prophase I
Metaphase II
Metaphase I
Crossing over occurs in which phase?
Prophase II
Prophase I
Metaphase II
Metaphase I
If a diploid cell with a diploid number of 36 chromosomes undergoes meiosis. How many chromosomes are present in each daughter cell after division?
18
16
24
36
If a diploid cell with a diploid number of 36 chromosomes undergoes meiosis. How many chromosomes are present in each daughter cell after division?
18
16
24
36
What is the significance of crossing over?
Cell division
Mutation
Genetic variation
All of the above
What is the significance of crossing over?
Cell division
Mutation
Genetic variation
All of the above
____________ type of cell division takes place in gametes.
Mitotic cell division
Meiotic cell division
Both A and B
None of the above
____________ type of cell division takes place in gametes.
Mitotic cell division
Meiotic cell division
Both A and B
None of the above
After which phase in the cell cycle and DNA replication, meiosis begins?
Interphase
Cytokinesis
G1phase
G2 phase
After which phase in the cell cycle and DNA replication, meiosis begins?
Interphase
Cytokinesis
G1phase
G2 phase
Sexually reproducing organisms produce gametes by the process of?
Mitosis
Meiosis
Cytokinesis
Cell division
Sexually reproducing organisms produce gametes by the process of?
Mitosis
Meiosis
Cytokinesis
Cell division
Meiosis is characterized by
Reduction division
Equal division
Both reduction and equal division
Paining of non-homologous chromosomes
Meiosis is characterized by
Reduction division
Equal division
Both reduction and equal division
Paining of non-homologous chromosomes
Which of the following does not result in variations among siblings?
Independent assortment of genes
Crossing over
Linkage
Mutation
Which of the following does not result in variations among siblings?
Independent assortment of genes
Crossing over
Linkage
Mutation
Identify the wrong statement about meiosis
Pairing of homologous chromosomes.
Four haploid cells are formed.
Number of chromosomes is reduced to half by the end of meiosis.
2 cycles of DNA replication occur.
Identify the wrong statement about meiosis
Pairing of homologous chromosomes.
Four haploid cells are formed.
Number of chromosomes is reduced to half by the end of meiosis.
2 cycles of DNA replication occur.
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
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
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
