NEET BIOLOGY

Detailed explanation-1: -In another example (shown below), if the parent plants both have heterozygous (YG) genotypes, there will be 25% YY, 50% YG, and 25% GG offspring on average. These percentages are determined based on the fact that each of the 4 offspring boxes in a Punnett square is 25% (1 out of 4).

Detailed explanation-2: -Answer and Explanation: A heterozygous individual has two different alleles for a particular gene. In this case, the individual would have a 50% chance of inheriting one allele and a 50% chance of inheriting the other allele. The probability of getting heterozygous offspring for both genes is 1/4.

Detailed explanation-3: -The probability that both heterozygous parents will contribute a recessive allele for any given trait is 3 out 4 or 75% of the time. An example of a heterozygous genotype is one where one allele is dominant and the other is recessive.

Detailed explanation-4: -If we cross two heterozygous individuals (Aa), then the percentage of offsprings with recessive phenotype will be: Aa x Aa = AA Aa Aa aa, so recessive phenotypes would be 1/4 = 25%.

Detailed explanation-5: -We know that when two people who are both heterozygous for a simple Mendelian autosomal gene alpha have a child, the probability that the child will show the dominant phenotype is 3/4.