MIUN Free NEET Quiz Unit 7

1. In eukaryotes, operon generally shows specificity.

2. Opposing traits of an organism is much more suitable for the study of inheritance.

3. The offsprings are non-identical to their parents in all characters.

4. For the first time statistical analysis and mathematical logic were applied to problems in biology by Mendel.

5. Fossils discovered in Bhimbetka in 1891 revealed Homo erectus lived about 1.5 mya, had a cranial capacity of 650cc, probably ate meat.

6. Mendel’s experiments had a large sampling size, which gave greater credibility to the data that he collected.

7. While examining inheritance patterns in pea plants with contrasting traits, Mendel proposed the principles of inheritance, now known as ‘Mendel’s Laws of Inheritance.’

8. The Big Bang Theory talks of a singular huge explosion unimaginable in physical terms.

9. Variation is the process by which characters are passed on from parent to progeny; it is not the basis of heredity.

10. The remaining set of chromosomes other than sex chromosomes was named as autosomes.

11. Alfred Malthus, a naturalist who worked in the Archipelago, had also come to conclusions similar to Darwin around the same time.

12. If we use alphabetical symbols for each gene, then the capital letter is used for the trait expressed at the F1 stage and the small alphabet for the other trait.

13. Pod colour is a character.

14. A common permissible conclusion is that earth is very old.

15. Fossils discovered in Java in 1891 revealed Homo erectus lived about 15 mya, had a cranial capacity of 900cc, probably did not eat meat.

16. The resemblance of progeny to their parents in terms of morphological and physiological traits has long intrigued biologists.

17. Phenomena like habitat fragmentation and genetic drift do not accentuate these variations and do not lead to the appearance of new species or evolution.

18. Genetics is a branch of biology which deals with principles of inheritance and its practices.

19. DNA fingerprinting does not have extensive applications in forensic science, genetic biodiversity, and evolutionary biology.

20. When we see objects in our immediate surroundings, we see them instantly and hence in the present time.

21. Today genetic maps are not used as a starting point in the sequencing of whole genomes as was done in the case of the Human Genome Project

22. In chickens, males have ZZ sex chromosomes, and females have ZW sex chromosomes.

23. Similar genes in dissimilar organisms performing similar functions is an example of divergent evolution.

24. The two RNA molecules if produced simultaneously would be complementary to each other, hence would form a double stranded RNA.

25. The Human Genome Project, a large-scale endeavour, did not aim to sequence every base in the human genome and has not provided a wealth of new information.

26. Fossils discovered in Bhimbetka in 1891 revealed Homo erectus lived about 1.5 mya, had a cranial capacity of 900cc, probably did not eat meat.

27. Most scientists believe that chemical evolution, which is the formation of biomolecules, preceded the appearance of the first cellular forms of life.

28. Genetics deals with the inheritance, as well as the variation of characters from offspring to parents.

29. In HGP, 23 human chromosomes were sequenced.

30. In Drosophila melanogaster crossing between gene w and m produces Mendelian ratio.

31. Genes which code for a pair of contrasting traits are known as alleles, i.e., they are entirely different forms of the same gene.

32. Wolf is a placental mammal.

33. In a pedigree tree, Arabic Numerals: Used to number individuals within each generation.

34. RNA did not evolve first, and DNA is not believed to have been derived from it.

35. Characters segregate during the formation of gametes (Law of Segregation).

36. Inheritance is the process by which characters are passed on from progeny to parent.

37. Down’s syndrome – short stature and underdeveloped feminine character

38. Turner’s syndrome – Big and wrinkled tongue.

39. Currently, few different probes are used to generate DNA fingerprints.

40. Fossils discovered in Bhimbetka in 1891 revealed Homo erectus lived about 15 mya, had a cranial capacity of 900cc, probably did not eat meat.

41. Replication is a systemic process, whereas the transcription is a localised process.

42. Tubers of potato and sweet potato are anatomically similar structures, though they perform dissimilar functions.

43. In humans, a normal female has 22 pairs of autosomes and one pair of sex chromosomes (XX), while a male has 22 pairs of autosomes and one pair of sex chromosomes (XY).

44. Microsatellites elements were crucial in constructing a detailed map of the human genome.

45. In phenylketonuria patients, phenylalanine is converted into phenyl pyruvic acid and other derivatives.

46. Marsupial mouse is a marsupial mammal.

47. Similarities in genes performing a given function among diverse organisms give clues to common ancestry.

48. Scientists can examine all the genes in a genome, such as the transcripts in a specific tissue, organ, or tumor, and investigate how thousands of genes and proteins interact within complex networks to coordinate the chemistry of life.

49. Some genes are linked to sex and are called sex-linked genes.

50. The diversity of life forms on Earth has remained static over millions of years.