NEET Biology Practice Questions - Set 7

61. How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?

A. Seven B. Five C. Six D. Eight

62. Which of the following is an example of co-dominance?

A. SnapDragon flower color B. AB blood group in humans C. Skin color in humans D. Pea seed shape

63. The mechanism that causes a gene to move from one linkage group to another is called:

A. Inversion B. Duplication C. Translocation D. Crossing-over

64. Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement:

A. Both are due to a quantitative defect in globin chain synthesis B. Thalassemia is due to less synthesis of globin molecules C. Sickle cell anemia is due to a quantitative problem of globin molecules D. Both are due to a qualitative defect in globin chain synthesis

65. If there are 999 bases in an RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?

A. 11 B. 33 C. 333 D. 1

66. The DNA-dependent RNA polymerase catalyses transcription on one strand of the DNA which is called the:

A. Template strand B. Coding strand C. Alpha strand D. Antistrand

67. Which of the following RNA should be most abundant in animal cell?

A. tRNA B. mRNA C. miRNA D. rRNA

68. Spliceosomes are not found in cells of:

A. Fungi B. Animals C. Bacteria D. Plants

69. Analogous structures are a result of:

A. Shared ancestry B. Stabilising selection C. Divergent evolution D. Convergent evolution

70. The first mammals were like:

A. Chimpanzees B. Monkeys C. Shrews D. Rats

NEET Biology Practice Questions (61-70)