|Biology MCQs With Answers|
2nd Year Biology Solved Question Answers List
Q.1: The amount of energy left plants have met their respiratory needs is net eprimary production which shows up as plant?
- Respiration rate
- Food reserve
Q.2: In man the vestigial organs are ?
- Ear muscles
- Nictitating membrane
- All a,b and c
Q.3: An ezyme that can be used to treat a human Iysosome storage disease is ?
Q.4: In prokaryote within promoter there are two binding sites TTGACA also called -35 sequence and TATAAT also called ?
- -10 sequence
- - 20 sequence
- - 30 sequence
- - 35 sequence
Q.5: Which evemt si not associated with the activity of expiration ?
- Contraction of diaphragm
- More dome like shape of diaphragm
- Back wardAnd downward movement of rib cage
- Relaxation of intercoastals muscles
Q.6: Awoman with normal colour vision, whose father was red-green colour blind, married a red-green colour-blind man. What is the probality of her first-born child being red-green colour blind ?
Q.7: The total energy from the sun is happened by the producers in an ecosystem is about ?
- 20 %
- 10 %
- 5 %
- 1 %
Q.8: In Griffith experiment mice developed pneumonia when they were injected with ?
- R-type bacteria
- Heat killed S-type bacteria
- Heat killed R-type bases
- Heat killed S-type becteria along with live R-type becteria
Q.9: If the condon consisted of only two nucleotides, there would be how many possible condons ?
Q.10: Every 200 nucleotides the DNA duplex is coiled around a core of eight histone proteins forming a complex known as a ?
Q.11: Which of the following hormones is not released by the anterior pituitary ?
- Melanocyte - releasing hormone
- Gonadotropin-releasing harmone
- Thyroid- stimulating hormone
- Growth hormone
Q.12: The concentrations of cell bodies of neuron are ?
Q.13: A woman can be bald only when she is ?
- Homozygous domunant
- Homozygous recessive
Q.14: As distal end humerus forms hinge joint with ?
- Both a And b
Q.15: Commonly used restriction enzyme is ?
- Eco R3
Q.16: Eukaryotes are thought to have first appeared about -------- billion years ago ?
Q.17: Shape of the plant cell does not change greatly compared with an animal cell because it is surrounded by a rigid ?
- Cell membrane
- Cell wall
Q.18: Water used for industrial purposes is about ?
Q.19: Asexual reproduction requires only a single parental organism which gives rise to offspring by ?
- Mitotic cell division
- Meiotic cell division
- Both a and b
- None of these
Q.20: The sites where nerve impulse is transmitted from the nerve endings to the skeleton muscle cell membranes are the ?
- Neucromuscular junctions
- Z discs
Q.21: Littoral invertebrate animals include ?
- Small crustaceans
- Insect larvae
- Snail flatworms
- All a,b,and c
Q.22: Identical twins result from the fertilization of ?
- One ovum by the sperm One ovum by the two sperms
Q.23: The protective coat which surrounds the embryo is known as ?
- Chorio Allantoic
Q.24: Mammalian kidney including human is adapted to conserve water by over ?
Q.25: Arthritis covers over 100 different types of inflammatory or degenerative diseases that damage the ?