by Sunday | Dec 23 | Biology WAEC
A. it is caused by sex-linked genes B. it is more common in males than in females C. two sickle cell carrier parents may have a sickling child D. it is caused by recessive genes Correct Answer: Option C – two sickle cell carrier parents may have a sickling...
by Sunday | Dec 23 | Biology WAEC
In humans, pointed eyebrows (B) is a dominant trait over smooth eyebrows (b). A student and the mother have smooth eyebrows while the father has pointed eyebrows. What is the genotype of the father? A. BB B. Bb C. bb D. BBbb Correct Answer: Option B = Bb Explanation...
by Sunday | Dec 23 | Biology WAEC
A. it will hinder her from having blood transfusion from her husband B. it will result in sickness and probably death of the offspring C. her children may all resemble her husband D. it may affect her childbearing ability Correct Answer: Option B – it will...
by Sunday | Dec 23 | Biology WAEC
A. butterfly B. cockroach C. termite D. housefly Correct Answer: Option C – termite
by Sunday | Dec 23 | Biology WAEC
A. gene mutation B. change of habitat C. reduction in population D. climate change Correct Answer: Option D – climate change
by Sunday | Dec 23 | Biology WAEC
A. great changes in the environment result in corresponding changes in species B. frequently used organs become well developed while the ones not used become vestigial C. well-developed acquired characters are inheritable D. survivors in a competitive community must...