Question

The following figure shows a cell containing a pair of homologous chromosomes. The alleles for the F gene are indicated on each chromosome. Which of the following most accurately represents the configuration of chromosomes within the cell following DNA replication, prior to meiosis?

Select one:

a.

b.

c.

d.

Which term is used to describe a pair of similar chromosomes in a cell:

Select one:

a. bifurcates

b. homologous

c. chromatids

d. replicants

Which of the following statements is TRUE in relation to the processes of mitosis and meiosis:

Select one:

a. Mitosis and meiosis both involve two rounds of cell division

b. Mitosis and meiosis both result in daughter cells that are identical to the parent cell

c. DNA replication occurs during mitosis but not during meiosis

d. Mitosis only takes place in single-celled organisms

e. Meiosis involves halving of the chromosome number, while at the end of mitosis chromosome number remains unchanged

During meiosis, which process results in the formation of new combinations of alleles in resulting gametes?

Select one:

a. Segregation of sister chromatids

b. Non-disjunction

c. Recombination

d. DNA replication

e. Segregation of homologous chromosomes

Trisomy 21, also known as Down Syndrome, results from which of the following:

Select one:

a. Non-disjunction during meiosis

b. Lack of cytokinesis

c. Failure of mitotic spindle formation

d. Errors in DNA replication

e. Recombination during meiosis

Answer 1

2.b. homologous

3.e. Meiosis involves halving of the chromosome number, while at the end of mitosis chromosome number remains unchanged.

4.c. Recombination.

5.a. Non-disjunction during meiosis.

Thanks rate the question if satisfied.