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Give the significance of mutation.
A pure tall plant (TT) is crossed with a pure dwarf plant (tt).
Draw Punnet squares to show
(1) F2 generation
(2) F2 generation.
Give the Phenotypic and Genotypic ratio of the F2 and F2 generation.
Explain the Term Dominance.
Give Technical Term:
A virus with DNA as heredity material.
Complete the following sentence with appropriate word:
In mammals, the female is homozygous while the male is _________.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
DNA has a double-helical structure.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A female is responsible for the sex of the progeny.
Multiple choice question.
In a dihybrid cross, F2 generation offsprings show four different phenotypes while the genotypes are _______.
A recessive factor is altered by the presence of a dominant factor.
Identify the genotype of peacock.
Two alternative forms of genes or alleles are located on ______.
Which of the following is the number of alleles for blood group in an individual?
Parents of blood group i and AB cannot have a child of blood group AB because ______.
An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?
Mendel was successful in his experiments because:
What is dihybrid cross?
