1.2. Give the correct biological term for each of the following descriptions.
1.2.1. A hollow ball of cells formed from the zygote.
1.2.2. The vesicle which contains enzymes found in the head of the sperm
cell.
1.2.3. The hormone that stimulates milk production for breastfeeding in
humans.
1.2.4. The structures formed by the centrioles during cell division.
1.2.5. The membrane that together with the endometrium , forms the
placenta.
1.2.6. The division of the cytoplasm through the constriction of the cell
membrane at the end of cell division.
1.2.7. The structure in the amniotic egg that stores wastes.
1.2.8. The inner lining of the uterus where implantation of the embryo
occurs.
1.2.9. A type of fertilization in which the nucleus of a sperm fuses with the
nucleus of an ovum outside the body of the female.
1.2.10. The point where two chromatids overlap during prophase I.
1.2.11. A type of egg where the embryo develops inside a fluid -filled sac
which is surrounded by a shell.
1.2.12. The type of development in birds where the hatchlings eyes are open
and their bodies are covered with down feathers.
1.2.13. A condition of the cell where there is only one set of chromosomes.
1.2.14. The release of an ovum from the ovary.
1.2.15. The period of development of foetus in the uterus.
1.2.16. The type of development in birds where the young are able to
independently move and feed themselves after hatching.
1.2.17. Tubules in the testes where the spermatogenesis occur.
1.2.18. A hormone that stimulates ovulation in humans.
1.2.19. The blood vessel that transport deoxygenated blood from the foetus
towards the placenta.
1.2.20. A structure in a female reproductive system where semen is
deposited.
1.2.21. Chromosomes other than the sex chromosomes.
1.2.22. More than two haploid sets of chromosomes found in the cells of an
organism
1.2.23.
1.3. Indicate whether each of the following statements in COLUMN I applies
to A ONLY, B ONLY , both A and B, or NONE of the items in COLUMN II, Write A
ONLY, B ONLY, both A and B or NONE next to the question number.
COULUMN I COULUMN II
1.3.1 A type of development in birds in which A. Precocial development
the young are capable of moving around
B. Altricial development
soon after hatching
1.3.2 Forms the placenta. A. Chorionic villi
B. Endometrium
1.3.3 Result on non disjunction. A. Gamete with 22
chromosomes
B. Gamete with 24
chromosomes
1.3.4 Secretion from this gland contribute to A. Cowpers gland.
the formation of semen
B. Prostate gland
1.3.5 Type of reproduction in vertebrates A. Vivipary
where the foetus is attached to and develops
B. Ovovivipary
inside the uterus.
1.3.6. Nutrition provided by the egg A. Ovipary
B. Ovovivipary
1.3.7. The blood vessel that transport A. Umbilical vein.
oxygenated blood from the placenta to the
B. Umbilical artery
foetus.
1.3.7. The young develop and is nourished in A. Vivipary
an amniotic that is retained in the mother s
body. B. Ovipary.
1.3.8. Secreted by the corpus luteum. A. Oestrogen.
B. Progesterone
1.3.9.
