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Genetics
Test Description: Genetics
Instructions: Answer all questions to get your test result.
1) Which statement best describes how traits are passed from one generation to the next?
A
traits are passed to the offspring through the blood of both parents
B
traits are acquired by offspring through innate and learned behaviors
C
traits are inherited during the first year of life as babies watch and imitate parents
D
traits are passed to the offspring through genes located on hereditary material from the parents
2) The allele for black hair, B, is dominant to orange tabby color, b, in cats. From a Punnett Square showing genotypes of Bb, Bb, bb, and bb; what did the parents look like in this genetic cross?
A
two black parents
B
two tabby parents
C
one black parent, one tabby parent
D
both parents were a mix of black and tabby
3) In monitor lizards, the dominant L is for long tails. The recessive l is for short tails. A female lizard with the genotype LL mates with a male lizard with the genotype Ll. What are the possible phenotypes for the offspring?
A
medium length tails
B
LL
C
long tails
D
short tails
4) Mendel's early work with pea plants demonstrated a significant genetic discovery. The crossing of homozygous tall pea plants with homozygous short pea plants always resulted in tall plants and demonstrated that tallness in pea plants is a ___ trait
A
recessive
B
blended
C
dominant
D
mutated
5) Which structure stores most of the genetic information?
A
Mitochondria
B
Ribosome
C
Lysosome
D
Nucleus
6) Brian owns a peacock farm. One day, a large batch of eggs hatch and Brian discovers that a few of the chicks are white instead of blue. If Brian wants to raise more white chicks, what should he do?
A
He should bleach the feathers of the blue peacocks before allowing them to breed with any white peacock
B
He should isolate the white peacocks and allow them only to breed with each other.
C
He should continue breeding the peacocks the same way.
D
He should always be sure to cross blue peacocks with white peacocks.
7) At a local pet store, 24 Silky Terriers, 22 miniature poodles, 21 Brussles Griftons, 20 Boston Terriers and 4 mixed breed dogs were sold . Which of the breeds was LEAST LIKELY to be selectively bred?
A
Miniature Poodle
B
Mixed Breed
C
Silky Terrier
D
Boston Terrier
8) Which is the most likely goal of selective breeding on a farm?
A
Corn that is smaller and less flavorful than other corn.
B
A cow that produces less milk than other cows.
C
Wheat that grows slow and attracts insects.
D
A horse that is stronger than other horses.
9) For centuries farmers have selected certain plants and animals for selective breeding. What is the purpose of choosing the organisms instead of just letting them all reproduce?
A
the farmers can only have one kind of animal at a time on the farm
B
the farmers want to control the size of certain animal and plant populations
C
the farmers select certain parent organisms in order to get valuable traits in the offspring
D
controlling which plants and animals can reproduce reduces competition for resources
10) Mendle started with pure bred purple(PP) and pure bred white(pp). The offspring were all heterozygous purple(Pp). Then he crossed (Pp) with (Pp) and got (PP), (Pp), (Pp) and (pp). what ratio of Purple to white blooms would he expect now?
A
3 purple to 1 white
B
3 white to 1 purple
C
All the plants would be purple
D
All the plants would be white
*select an answer for all questions
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