Reproduction in Human Beings (Male and Female Reproductive Systems)Practice Questions & MCQs
Practice Reproduction in Human Beings (Male and Female Reproductive Systems) questions from How do Organisms Reproduce? (Class 10 Science) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Reproduction in Human Beings (Male and Female Reproductive Systems)Quiz - Solve & Score
Q1. What is the expected ratio of boys to girls in a human population?
- A.3:1
- B.2:1
- C.1:1
- D.4:1
Answer: C. 1:1
The principle at play: As Fig. 8.6 shows, half the children will be boys and half will be girls. Eliminating the rest: option A) '3:1' is wrong because This is not the expected ratio of boys to girls in a human population; option B) '2:1' misses the point - This is not the expected ratio of boys to girls in a human population; option D) '4:1' doesn't hold - This is not the expected ratio of boys to girls in a human population. Hence the correct option is C) 1:1.
Q2. How is the process of pollination different from fertilisation?
- A.Pollination is the transfer of pollen grains from the anther to the stigma, while fertilisation is the fusion of male and female gametes.
- B.Pollination is the fusion of male and female gametes, while fertilisation is the transfer of pollen grains from the anther to the stigma.
- C.Pollination and fertilisation are the same process.
- D.Pollination occurs in animals, while fertilisation occurs in plants.
Answer: A. Pollination is the transfer of pollen grains from the anther to the stigma, while fertilisation is the fusion of male and female gametes.
Q3. What are the functions performed by the testis in human beings?
- A.The testis produces sperm and testosterone.
- B.The testis produces eggs and estrogen.
- C.The testis has no function in human beings.
- D.The testis produces urine and sweat.
Answer: A. The testis produces sperm and testosterone.
What is the textbook's take? The testis produces sperm and testosterone. And the rest? option B) 'The testis produces eggs and estrogen.' fails since The testis produces sperm and testosterone; option C) 'The testis has no function in human beings.' misses the point - The testis produces sperm and testosterone. Pick: A) The testis produces sperm and testosterone.
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