Which offspring will be homozygous dominant?
~homozygous dominant parents means each parent has 2 dominant (rolling tongue) alleles. Therefore, each parent has no choice but to pass on those dominant alleles to their offspring (RR). All offspring, 4/4 will also be homozygous and able to roll their tongues.
What is the probability of heterozygous offspring?
The possibilities are summarized: There is a 50% x 50% = 25% probability that both of the offspring’s alleles are dominant. There is a 50% x 50% = 25% probability that both of the offspring’s alleles are recessive. There is a 50% x 50% + 50% x 50% = 25% + 25% = 50% probability that the offspring is heterozygous.
What is an example of homozygous dominant?
A homozygous dominant genotype is one in which both alleles are dominant. For example, in pea plants, height is governed by a single gene with two alleles, in which the tall allele (T) is dominant and the short allele (t) is recessive.
What homozygous dominant?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
What is the probability of homozygous offspring?
If two homozygous dominants are crossed, the probability that an offspring will be homozygous dominant is 100% or 1.00. 8. If two homozygous recessives are crossed, the probability that an offspring will be homozygous recessive is 100% or 1.00.
How do you find the percentage of heterozygous?
The percentage of heterozygous individuals (carriers) in the population. Answer: Since 2pq equals the frequency of heterozygotes or carriers, then the equation will be as follows: 2pq = (2)(.
- The frequency of the recessive allele. …
- The frequency of the dominant allele. …
- The frequency of heterozygous individuals.
What is the probability that two heterozygous parents will have a homozygous child?
The Punnett square below makes it clear that at each birth, there will be a 25% chance of you having a normal homozygous (AA) child, a 50% chance of a healthy heterozygous (Aa) carrier child like you and your mate, and a 25% chance of a homozygous recessive (aa) child who probably will eventually die from this …