Question
Compare the steps of mitosis in plant cells and animal cells and select which are correct:
Compare the steps of mitosis in plant cells and animal cells and select which are correct: Mitosis in plant cell Mitosis in…
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Question
Which of the following are the refractive media of the eye? (a) Cornea, aqueous humour, lens, vitreous humour (b) Retina, aqueous humour, lens, vitreous humour (c) Cornea, retina, lens, iris (d) Aqueous humour, iris, vitreous humour, cornea
Which of the following are the refractive media of the eye? (a) Cornea, aqueous humour, lens, vitreous humour (b) Retina, aqueous humour,…
Question
Which of the following statements is NOT correct? (a) Fibrin helps in blood clotting. (b) Platelets stop bleeding; many platelets reach the site of injury and begin the process of blood clotting. (c) Insulin increases the level of glucose in blood. (d) Adrenaline helps to increase heartbeat.
Which of the following statements is NOT correct? (a) Fibrin helps in blood clotting. (b) Platelets stop bleeding; many platelets reach the…
Question
Which one of the following is an incorrect food chain? (a) Grass → Rabbit → Snake → Hawk (b) Grass → Grasshopper → Frog → Snake (c) Grass → Cow → Man → Tiger (d) Grass → Insect → Rat → Snake
Which one of the following is an incorrect food chain? (a) Grass → Rabbit → Snake → Hawk (b) Grass → Grasshopper…
Question
Which of the following is not an example of mutualism? (a) Man and intestinal bacteria (b) Water hyacinth and fish (c) Fish and sea anemone (d) Lichen and blue green algae
Which of the following is not an example of mutualism? (a) Man and intestinal bacteria (b) Water hyacinth and fish (c) Fish…
Question
In which of the following crosses, will the F1 generation seed’s tall and dwarf traits appear in a 1:1 ratio? (a) Tt x Tt (b) TT x Tt (c) TT x tt (d) Tt x tt
In which of the following crosses, will the F1 generation seed’s tall and dwarf traits appear in a 1:1 ratio? (a) Tt…
Question
What will be the phenotypic ratio of progeny obtained from the hybridization between YyRR and YYrr genotypes? (a) 2:1 (b) 1:2 (c) 2:2 (d) 1:4
What will be the phenotypic ratio of progeny obtained from the hybridization between YyRR and YYrr genotypes? (a) 2:1 (b) 1:2 (c)…
Question
If a population undergoes three generations, and if each generation consists of only males, what is the probability that females will be present in the fourth generation?
If a population undergoes three generations, and if each generation consists of only males, what is the probability that females will be…
Question
Which of the following statements about self-pollination is correct?
Which of the following statements about self-pollination is correct? Self-pollination occurs within the same flower. New characters do not arise by self-pollination.…
Question
Among nitrobacter, rhizobium, nitrosomonas, nitrite bacteria, pseudomonas — which one is found in the fourth phase of the nitrogen cycle? (a) Rhizobium (b) Nitrosomonas (c) Nitrobacter (d) Pseudomonas
Among nitrobacter, rhizobium, nitrosomonas, nitrite bacteria, pseudomonas — which one is found in the fourth phase of the nitrogen cycle? (a) Rhizobium…