Use the table to answer the question.
Plant A Plant B Plant C
tt TT Tt
The table shows the genotypes of three pea plants for the allele for height. Which prediction about the three plants is the most reasonable?
(1 point)
Responses
Plant A and Plant C will have similar heights.
Plant A and Plant C will have similar heights.
Plant C will be the shortest.
Plant C will be the shortest.
Plant A will be the tallest.
Plant A will be the tallest.
Plant B and Plant C will have similar heights.
Plant B and Plant C will have similar heights.
In rabbits, B represents the allele for black coat and b represents the allele for white coat. Black is dominant over white. If a rabbit has the genotype Bb, what is the rabbit's phenotype?
(1 point)
Responses
gray
gray
black
black
white
white
Speckled
black
R = red flowers
r = white flowers
According to Mendel’s law of dominance, which genotype(s) represent offspring with white flowers?
(1 point)
Responses
RR or Rr
RR or Rr
rr or Rr
rr or Rr
rr
rr
Rr
rr
Environmental factors and genetics have an effect on plant growth. Evaluate each of the statements and sort them into things that increase plant growth and things that decrease plant growth.
(2 points)
INCREASES plant growth DECREASES plant growth
drought
INCREASES plant growth – drought
DECREASES plant growth – drought
increased rainfall
INCREASES plant growth – increased rainfall
Twins Carlos and Miguel received bulldog puppies from the same litter for their birthday. Their parents thought they would be learning responsibility by caring for the dogs. Both boys fed and played with their dogs every afternoon. Both dogs slept by their beds each night. When baseball season started, Carlos had practice five days a week. Although he still took good care of his dog, he was not able to run and play with the dog as much as he had before baseball season. When the dogs went to the vet for a check-up, the vet told the boys that Miguel's dog was in great shape but Carlos' dog had grown a bit too heavy.
The weight difference in the twin's dogs was caused by(1 point)
Responses
an obesity gene.
an obesity gene.
a genetic mutation.
a genetic mutation.
an inherited condition.
an inherited condition.
an environmental factor.
an environmental factor.
Examine the data for goldfish size in different aquariums grown with varying numbers of other goldfish. Which statement is supported by the data?
Number of goldfish Average mass of each goldfish (grams)
1 350
5 300
20 200
50 100
(1 point)
Responses
Lack of competition with other fish is an environmental factor and increases how large goldfish can grow.
Lack of competition with other fish is an environmental factor and increases how large goldfish can grow.
Lack of competition with other fish changes the genetics of the goldfish and increases how large goldfish can grow.
Lack of competition with other fish changes the genetics of the goldfish and increases how large goldfish can grow.
An increase in the number of fish in the aquarium increases the size of the average goldfish.
An increase in the number of fish in the aquarium increases the size of the average goldfish.
A decrease in the number of fish in the aquarium decreases the size of the average goldfish.