Question

draw a punnett square board to show the Gametes and offspring when both the parent plant and are heterozygous for axial
flower

Answer 1

Axillary Flower (A) and Terminal Flower(a)

Answer 2

Punnet squares generally measures the probability of a genetic outcome.

• Punnet square is actually a way to show the events that occur during meiosis.

• Here one allele from each pair goes to each sex cell.

• In the F1 generation following phenotypic feature are observed:

• Half of the progeny are heterozygous tall (Tt)

Another half of the population is homozygous short (tt)

• Hence the ratio of phenotypic features is same as genotype ratio, which is 2:2 or 1:1.

• It works on the principle of mendel's three laws

• 1.Law of dominance:Dominant allele determines the appearance of the organism whereas the recessive allele has no noticable difference.

• 2. Law of segregation:  The two alleles get seperated or segregated during gamete formation and result in different gametes.

3. Law of independent assortment:Alleles of different chromosomes are distributed randomly to individual gametes.

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