Jamb 2003 Biology Past Questions And Answers
1
An organism that has been extensively used to test the chromosomes theory of heredity is
- A. Drosophila melanogaster
- B. Muscar domestica
- C. Zea mays
- D. Homo sapiens
2
A feature associated with the Y-chromosome in human is
- A. long eyelashes
- B. prominent fingernails
- C. facial hairs
- D. enlarged breast
3
Spines and shells on animals are adaptation for
- A. camouglage
- B. chemical defence
- C. physical defence
- D. mimicry
4
The cell component that is present in a prokaryotic cell is the
- A. Chloroplast
- B. Ribosome
- C. Mitochondrion
- D. Nuclear envelope
5
The type of reproduction that leads to variation animal and plant population is
- A. budding
- B. sexual
- C. vegetative
- D. asexual
6
The umbrella shaped fruiting body of a fully developed mushroom is the
- A. Pileus
- B. Mycelium
- C. Basidium
- D. Stipe
7
An argument against Lamarck's theory of evolution is that
- A. disuse of body part cannot weaken the part
- B. disused part is dropped off in the offspring
- C. acquired traits cannot be passed on to the offspring
- D. trait cannot be acquired through constant use of body parts
8
A limited factor in a plant population near a chemical factory is likely to be
- A. Light
- B. Humidity
- C. wind
- D. pH
9
In mammalian males, the excretory and reproductive systems share the
- A. Ureter
- B. vas deferens
- C. Urethra
- D. Testes
10
An insect with a mandibulate mouth part will obtain its food by
- A. biting and chewing
- B. chewing and sucking
- C. chewing
- D. sucking