GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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50% type O:50% type AB
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50% type B:50% type A:25% type O
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25% type AB:50% type B:25% type A
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50% type AB:25% type A:25% type B
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Detailed explanation-1: -The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given. In its simplest form, the Punnett square consists of a square divided into four quadrants.
Detailed explanation-2: -The number of rows in a Punnett square is set by the number of possible alleles on the father’s end. This will vary depending on the father’s blood type. If the father has a homozygous blood type, there will be fewer rows. If his blood type could be heterozygous, there will be more rows.
Detailed explanation-3: -A 1:1 phenotypic ratio occurs when there are only two phenotype possibilities as outcomes when organisms are crossed and they both have a 50/50 chance of appearing.