When examining a Punnett Square, how are dominant alleles represented?(1 point)
Responses
lower case letters
lower case letters
numbers
numbers
upper case letters
upper case letters
It depends on the Punnett Square.
upper case letters
When examining a Punnett Square, how are recessive alleles represented?(1 point)
Responses
It depends on the Punnett Square.
It depends on the Punnett Square.
numbers
numbers
upper case letters
upper case letters
lower case letters
lower case letters
Which combinations below represent dominant alleles?(1 point)
Responses
TT, tt
TT, tt
Tt, tt
Tt, tt
TT, Tt
TT, Tt
tt, tt
TT, Tt
Draw the Punnett Square below in your Science notebook and fill in the possible offspring. Use your Punnett Square to answer the question.
What percent of offspring will express the dominant allele?
(1 point)
Responses
75%
75%
50%
50%
100%
100%
25%
25%
Question 5
To determine the percentage of offspring that will express the dominant allele, we need to look at the Punnett Square. If we have a homozygous dominant parent (TT) crossed with a homozygous recessive parent (tt), the offspring will all be heterozygous (Tt). In this case, 100% of the offspring will have the dominant allele.
Draw the Punnett Square below in your Science notebook and fill in the possible offspring. Use your Punnett Square to answer the question.
What percent of offspring will express the recessive allele?
(1 point)
Responses
25%
25%
50%
50%
75%
75%
100%
To determine the percentage of offspring that will express the recessive allele, we need to look at the Punnett Square.
If we have a homozygous dominant parent (TT) crossed with a homozygous recessive parent (tt), the offspring will all be heterozygous (Tt). In this case, 0% of the offspring will have the recessive allele.
However, if we have two heterozygous parents (Tt), there is a chance for offspring to be homozygous recessive (tt). In this case, 25% of the offspring will express the recessive allele.
Therefore, the correct answer is 25%.
According to this Punnett Square, what eye color is dominant?
(1 point)
Responses
green
green
blue
blue
black
black
brown