Name ________________
Genetics Test Review
Due: ______
1. Organisms that reproduce sexually show greater variation because…
2. How much of an organism’s genes come from each parent?
3. Define heredity:
4.
5.
__________________ govern
traits.
Put a checkmark next to traits that are inherited.
___ fur color
___ scars
___ height
___ eye color
___ weight
___ flower color
6. Select the correct word to complete the sentence.
All organisms of a species share (ALL or SOME or NONE) of the same genes.
7. Several babies were mixed up at the Nogood Hospital. How can the doctors figure out which
baby goes with which mother?
8. Some organisms reproduce asexually. How does the offspring’s DNA compare to the parent
DNA? Will the offspring be diverse or uniform?
Paramecium
9. Some organisms reproduce sexually. How does the
compare to the parents’
DNA? Will the offspring be diverse or uniform?
offspring’s DNA
10. Label the diagram with: cell, chromosome,
nucleus.
gene,
11. Why does sexual reproduction result in
variety of traits than the
offspring from asexual reproduction?
offspring with a greater
12. ____________________ genes mask other genes. Genes that are _______________
have to be paired with another of the same kind to show their version of the trait.
13. Use a Punnett Square to show the probabilities and genotypes for a cross between wrinkled
purebred (r) and smooth hybrid (R) pea
parents.
Parent 1 genotype ______
Parent 2 genotype ______
14. Use a Punnett Square to show the results of a cross between a dark haired purebred (D) and
a light haired purebred (d) guinea pig.
Parent 1 genotype _____
Parent 2 genotype _____