What is the probability that an offspring will have a homozygous dominant?

What is the probability that an offspring will have a homozygous dominant?

One Homozygous Parent Above if the homozygous parent has two dominant alleles, then all of the offspring will have the same phenotype of the dominant trait. In other words, there is a 100% probability that an offspring of such a pairing will exhibit the dominant phenotype.

What is the probability of getting 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 the probability of the parents having a child that is heterozygous for this trait?

The chance of either parent being a heterozygote is 1/4, as calculated above. Then, the probability that both parents are heterozygotes, and the probability that two heterozygotes will have a heterozygous child, is 1/4 x 1/4 x 1/2 = 1/32.

How do you write homozygous recessive?

When a particular gene has identical alleles (versions) of chromosomes inherited from both parents, the gene is homozygous. A homozygous trait is referred to by two capital letters (XX) for a dominant trait, and two lowercase letters (xx) for a recessive trait.

What is the probability of the parents having a child who is homozygous dominant for this trait quizlet?

There is a 50% chance that the children will be heterozygous (Aa) and a 25% chance that they will be homozygous dominant (AA). Children with either of these genotypes will have this trait expressed in their phenotypes.

What is the probability of producing a homozygous recessive offspring?

The probability of producing a homozygous recessive (rr) offspring depends on the genotypes of the parents. If: the parents are both RR, the probability is 0% the parents are RR and rr, the probability again is 0%

What happens when you cross breed homozygous and heterozygous?

When true-breeding, or homozygous, individuals that differ for a certain trait are crossed, all of the offspring will be heterozygous for that trait. If the traits are inherited as dominant and recessive, the F1 offspring will all exhibit the same phenotype as the parent homozygous for the dominant trait.

What is the chance of the offspring being BB or BB?

The chance of the offspring born is : So we can conclude that the chance is 50 % BB (Dominant expressed.), 50% Bb (Dominant expressed.). Bb + Bb. The chance of the offspring born is : And so the offspring has 50% chance of being born Bb (Dominant expressed.), 25% born BB (Dominant expressed.), and 25% bb (Recessive expressed.).