8(A) Meiosis

Giraffes (Giraffa camelopardalis) have 30 chromosomes in their somatic cells. How many chromosomes will each daughter cell have after the final step of meiosis? Enter your answer in the box. Your answer must be a whole number.

A cell undergoing a biological process is shown. Which process occurs between Step 2 and Step 3 and creates more genetic diversity in the resulting cells?

• Chromosome nondisjunction

• Genome replication

• Crossing over

• Chromosomal deletion

Tags

NGSS.HS-LS3-2

A cellular process is shown. Which of these is the most likely result of the process shown in the diagram?

• Chromosome replication will cease to avoid errors that result in mutations.

• Offspring will no longer express traits from previous generations.

• Gametes will contain new allele combinations.

• Chromatids will have less genetic variety.

Tags

NGSS.HS-LS3-2

A cellular process is shown. Which statement best describes the significance of this process?

• The process allows organisms to grow and heal.

• The process produces clones of the parent organism.

• The process copies DNA before cell division.

• The process creates genetic variation in the resulting cells.

Tags

NGSS.HS-LS1-4

Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination is —

• the same because it is created from the same DNA

• the same because chromosomes are copied prior to meiosis

• different due to DNA replication prior to mitosis

• different due to independent assortment during meiosis

Tags

NGSS.HS-LS3-2