Mitosis/Meiosis College Biology

Gametes contain ___ the number of chromosomes found in somatic cells.

• the same

• twice

• half

• one fourth

Tags

NGSS.HS-LS3-2

Somatic cells are ___, whereas gametes are ___.

• haploid, diploid

• diploid, polydiploid

• polyploidy, haploid

• diploid, haploid

An organism is said to be diploid if

• it contains genetic info from two parents.

• it is multicellular.

• it reproduces.

• it undergoes mitotic cell division.

What are homologous chromosomes?

• The two halves of a replicated chromosome.

• Two identical chromosomes from one parent.

• Two genetically identical chromosomes, one from each parent.

• Two genetically similar chromosomes, one from each parent.

When homologous chromosomes form chiasmata, they are

• exchanging genetic info.

• reproducing DNA.

• separating their sister chromatids.

• replicating their chromatids.

Tags

NGSS.HS-LS3-2

Crossing over involves each of the following with the EXCEPTION of

• the transfer of DNA between two nonsister chromatids.

• the transfer of DNA between two sister chromatids.

• the formation of a synaptonemal complex.

• the alignment of homologous chromosomes.

Terminal chiasmata are seen during which phase of meiosis?

• Anaphase I

• Prophase I

• Metaphase I

• Metaphase II

Which of the following occurs during Anaphase I?

• Sister chromatids are separated and move to the poles.

• Homologous chromosomes move to the opposite poles.

• Homologous chromosomes align at the middle of the cell.

• All the chromosomes align independently at the middle of the cell.

Telophase I results in the production of

• four cells containing one homologue of each homologous pair.

• two cells containing both homologues of each homologous pair.

• four cells containing both homologues of each homologous pair.

• two cells containing one homologue of each homologous pair.

Which of the following does NOT contribute to genetic diversity?

• independent assortment

• recombination

• metaphase of meiosis II

• metaphase of meiosis I

Tags

NGSS.HS-LS3-2