Genetics Unit Test

Sprouting is an example of

• Seed production

• fertilization

• Pollination

• Asexual reproduction

Which of the following genotypes will express the recessive phenotype

• AA

• Aa

• aa

• None of these

Mutations in an organism that can be passed on to offspring occur in

• Skin cells

• Sperm or egg cells

• Muscle or nerve cells

• Skin or muscle cells

Which of the following genotype(s) will express the dominant phenotype

• AA

• Aa

• aa

• AA or Aa

The process that explains survival and shows how species can change over time. 

• Adaptation 
• Natural Selection
•  Variation 

The purpose of meiosis is to produce

• Genetic Variation

• Identical cells

This produces 2 identical cells.

• mitosis
• meiosis

Tags

NGSS.HS-LS1-4

A human usually has xx amount of chromosomes.

• 6
• 22
• 4
• 46

Tags

NGSS.HS-LS3-1

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

• 23, 46
• 46, 23
• 2, 4
• 50, 100

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What causes genetic variation in meiosis?

• chromosomes lining up
• crossing over of chromosomes
• separation of chromosomes
• chromosomes pulling apart

Tags

NGSS.HS-LS3-2