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Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.
Differentiate between male and female heterogamety.
The sex of a child is determined by which of the following?
(a) the length of the mother's pregnancy
(b) the length of time between ovulation and copulation
(c) the presence of and X chromosome in an ovum
(d) the presence of a Y chromosome in a sperm
Which combination of genes in the zygote will produce children with brown eyes?
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
How many ovum are formed when a diploid cell undergoes meiosis, during oogenesis?
Identify the organism in which ZZ-ZW type of sex determination is observed.
Select the incorrect statement
The two versions of a trait (character) which are brought in by the male and female gametes are situated on
The number of pair (s) of sex chromosomes in the zygote of humans is
