UNILAG BIO 101 CBT PRACTICE

1. In the study of heredity, the tendency of offspring to vary from their parents is defined as __________.

2. Select the odd one out:

3. The organ that supplies nutrients and oxygen to the developing fetus is the ______.

4. A symport protein transports

5. All the living organisms interacting in a particular area form a ______.

6. The stage of development where the organism begins to take shape after several cell divisions is called the ______.

7. Four haploid cells each genetically distinct from the parent cell that gave rise to them are produced during:

8. What is the independent variable in an experiment?

9. While common in invertebrates, parthenogenesis has also been observed in vertebrates such as the __________ as a rare response to low population density.

10. The human ABO blood group system is an example of __________, where both the A and B alleles are fully expressed in the heterozygote.

11. The study of the tissue and cell structure of plant organs is called:

12. A group of organisms of the same species living in a particular area is known as a ______

13. If one parent is heterozygous and the other is homozygous recessive, what is the chance of offspring being heterozygous?

14. Mitochondria are commonly referred to as the ______ of the cell.

15. The repeated division of the zygote to form many cells is known as ______.

16. A situation in which the phenotypes produced by two alleles are clearly expressed is called:

17. Which of these connotes a hybrid?

18. What are the long, flattened, parallelly arranged, unbranched structures found within certain organelles?

19. The process by which sperm and egg unite to form a zygote is known as ______.

20. Organisms that feed directly on producers are known as ______ consumers.

21. Cells with high energy demand such as ______ contain many mitochondria.

22. In fibroblasts, mitochondria are usually ______ in appearance.

23. Which of the following groups embraced the rest?

24. Select the ODD one

25. Which of these is a disaccharide?

26. ______ lamins are inside, next to nucleoplasm while ______ lamins are near the nuclear envelope.

27. The outer boundary of the mitochondrion is known as the ______.

28. Which of the following is testable in scientific enquiry?

29. Individual's metaphase chromosomes organized by length, shape, centromere location is called:

30. Ecology is the study of the relationship between organisms and their ______.

31. The Law of __________ states that alleles for each gene separate during gamete formation so that each gamete carries only one allele for each gene.

32. Inheritance patterns involving three or more alleles of the same gene for a single trait, such as rabbit fur color, are called __________.

33. The position an organism occupies in a food chain is called its ______.

34. The fusion of male and female gametes during fertilization results in the formation of a ______.

35. Organisms that break down dead plants and animals are called ______.

36. __________ is a form of asexual reproduction where an egg develops into an embryo without being fertilized.

37. Producers in an ecosystem are mainly ______.

38. When the testa (seed coat) is too hard to allow the embryo to expand, the dormancy is called:

39. __________ occurs when the heterozygous phenotype is a blend of the two homozygotes, such as pink flowers resulting from red and white parents.

40. Interphase is a stage in mitosis

41. Mendel's "factors," which are the carriers of heredity information, were given the name "genes" by __________ in 1909

42. The biological process by which new individual organisms are produced from their parents is known as __________.

43. The mechanism of asexual reproduction involving the splitting of a parent organism into two individuals of approximately equal size is called __________.

44. The number of mitochondria in a cell mainly depends on the ______ of the cell.

45. The term Genetics was first coined by William Bateson in the year __________.

46. Tonoplast can be found in:

47. The structures responsible for ATP production in mitochondria are known as ______ particles.

48. An evolutionary solution for sessile or burrowing animals that have limited opportunities to find a mate is __________.

49. In __________, new individuals arise from outgrowths of existing ones, a process commonly seen in stony corals.

50. Mitochondria were first observed by: