Genetics Test Review

Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents

• 1,1

• 2,1

• 1,2

• 2,2

Where does an off spring get its traits in asexual reproduction?

• From both parents

• Neither parent

• From one parent

• There are no traits handed down

All of the offspring of an organism have the same genetic material, which is identical to the parent organism. From this, we can conclude that this organism -

• Makes its own food

• Is unicellular

• Lives in a marine habitat

• Reproduces asexually

When 2 sex cells, or gametes, join together and form offspring, the resulting offspring is likely

• to express recessive traits

• to be identical to one parent

• to share some of its traits from BOTH parents

Which of the following describes the main advantages of sexual reproduction?

• Requires lots of time/energy

• No new genetic combos can happen

• Genetic diversity

• Looks identical to the parent

What percentage of chromosomes are passed down by an egg cell?

• 25%

• 50%

• 75%

• 100%

An organism inherits how many alleles from each parent?

• 2

• 3

• 1

• 0

An organism that is heterozygous will have

• two different alleles (Bb)

• two dominant alleles (BB)

• two recessive alleles (bb)

• none of the above

Which of the following is a homozygous recessive genotype?

• BB

• Bb

• bb

Which of the following is a homozygous dominant genotype?

• BB

• Bb

• bb