Answer No 32:
The correct option is A) both parents are heterozygous.
Step-by-step explanation:
A punnet square can be described as a diagram which is made to test for the results of a cross. Lets make a punnet square between heterozygous parents to depict the result:
H h
H HH Hh
h Hh hh
The cross shows that the parents who are heterozygous dominant when crossed will have 25% probability of producing a recessive child. Hnece, option A is correct.
Answer No 33:
The correct option is C) grey
Step-by-step explanation:
Incomplete dominance can be described as intermediate inheritance. In this type of inheritance, one allele is not completely dominant or recessive on the other allele. This results in the formation of a third phenotype which is not a characteristic of any of the parental alleles.
hence, incomplete dominance between white and black Quernels will result in grey offsprings.
Answer No 34:
The correct option is A) Fertilization
Step-by-step explanation:
The process by which a sperm cell and an egg cell unite to form a zygote is termed as fertilization. Hence, option A is correct.
Option B is not correct because heredity is the passing of traits from parents to offspings.
Option C is not correct because meiosis is the process by which the sex cell are made. The egg cells and the sperm cells are made through the process of meiosis.
Option D is not correct because mitosis is the process by which all cells of the body are made except sex cells.
Answer No 35:
The correct option is A) co-dominant
Step-by-step explanation:
In genetics, co-dominance can be described as a phenomenon in which a dominant allele is not fully dominant over the recessive allele. As a result, the offspring shows phenotype combination of both the dominant as well as the recessive allele.