50 percent of the offspring would be expected to have the ability to roll their tongues If a heterozygous male is crossed with a homozygous recessive female.
Explanation:
Information given:
the ability to roll tongue is dominant, the genotype would be RR, Rr
the inability to roll tongue is recessive trait the genotype = rr
Given that heterozygous male is crossed with homozygous recessive female, the genotype is
Rr X rr
Punnet square shows that:
R r
r Rr rr
r Rr rr The genotype ratio is 1:1
phenotype ratio is 1:1
There are chances of 50 % offspring having the ability to roll their tongues as they are heterozygous and have the dominant allele for rolling of tongues.
I just answered this question from a different person but I like helping with science. This is from the water's breeze or air currents. This makes the climate mild while the inland is more extreme because it does not have the breeze. Hopefully this helps :D
D, think of it like a house.
Answer:
Identical twins tend to be more similar to each other than fraternal twins do.
Explanation:
