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Question
What is parthenogenesis?
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Solution
The process by which a female produces offspring from unfertilized eggs is known as parthenogenesis.
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RELATED QUESTIONS
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.
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?
What is male heterogamety?
Match the items of Column I with Column II:
| Column I | Column II | ||
| i. | XX-XO method of Sex Determination | a. | Turner syndrome |
| ii. | XX-XY method of Sex Determination | b. | Female heterog ametic |
| iii. | karyotype-45 | c. | Grasshopper |
| iv. | ZW-ZZ method of Sex Determination | d. | Female homogametic |
Which of the following is incorrect regarding ZW - ZZ type of sex determination?
Which of the following determines the sex of a child?
Which of the following group shows ZW-ZZ type of sex determination?
What is the probability of a girl or a boy being born into a family? Justify your answer.
How is the sex of a newborn individual determined in different species of animals? Give three examples to support your answer.
