Part 1 PreTake Genetics Practice

The process of meiosis helps create new...

• proteins

• gametes

• somatic cells

• body cells

The cell cycle and mitosis helps an organism grow larger or regrow body parts. What kind of cells are produced?

• egg cells

• gametes

• somatic cells

• sex cells

Cells that only contain one allele for a trait instead of two are considered...

• haploid cells

• diploid cells

• brain cells

• body cells

Cells that contain a complete set of genetic instructions (2 alleles for each trait) are considered...

• Diploid

• Haploid

• Gametes

• Sperm Cells

The brain cells of a mouse contains 40 chromosomes, how many chromosomes would be in a mouse sperm cell?

• 20

• 40

• 80

Blue whales have 22 chromosomes in their haploid cells. How many would you expect in a diploid cell?

• 11

• 22

• 44

Which process does not increase genetic variation in a population?

• crossing over

• genetic mutations

• sexual reproduction

• asexual reproduction

The spider plant in the picture has used asexual reproduction to produce offspring. The cells of the offspring will contain..

• DNA that is genetically identical to the parent

• half the number of chromosomes as the parent cells

• new genes that code for building different proteins

• A combination of genetic instructions from two parent sex cells

Which statement does not describe sexual reproduction?

• requires 2 parents

• combines gametes

• decreases genetic diversity

• joins egg and sperm cells

Which of the following is considered a homozygous dominant genotype?

• HH

• Hh

• hh