Consider the following statements regarding asexual reproduction: 1. It involves only a single parent. 2. Hydra reproduces by a method called binary fission. 3. Amoeba reproduces by a method called binary fission. Which of the statements given above is/are correct?

Correct Option The correct option is (c). Explanation Asexual reproduction is a mode of reproduction in which a new offspring is produced by a single parent without the involvement of gamete formation or fusion. The offspring produced are genetically identical to the parent (clones). Statement-wise Analysis - Statement 1 is Correct: Asexual reproduction is characterized by the involvement of only a single parent (uniparental). It does not involve the fusion of male and female gametes, unlike sexual reproduction. - Statement 2 is Incorrect: Hydra reproduces asexually through a process called budding. In this method, a bud develops as an outgrowth due to repeated cell division at one specific site. This bud eventually detaches from the parent body to become a new independent individual. It does not undergo binary fission. - Statement 3 is Correct: Amoeba is a unicellular organism that reproduces asexually through binary fission. In this process, the parent cell divides into two equal halves, each forming a new individual. This involves the division of the nucleus followed by the division of the cytoplasm. Key Takeaway: Unicellular organisms like Amoeba typically reproduce via binary fission, whereas multicellular organisms like Hydra reproduce via budding. Both are forms of asexual reproduction involving a single parent.

Consider the following statements regarding asexual… - NCERT Class 8 Science MCQ

NCERT Class 8 Science — Chapter 3: Reproduction in animals

mcqeasy

Consider the following statements regarding asexual reproduction:

It involves only a single parent.
Hydra reproduces by a method called binary fission.
Amoeba reproduces by a method called binary fission.

Which of the statements given above is/are correct?

NCERT textbook question

From NCERT Science - class 8 · Page 73

Options

A1 and 2 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

Correct Option

The correct option is (c).

Explanation

Asexual reproduction is a mode of reproduction in which a new offspring is produced by a single parent without the involvement of gamete formation or fusion. The offspring produced are genetically identical to the parent (clones).

Statement-wise Analysis

Statement 1 is Correct: Asexual reproduction is characterized by the involvement of only a single parent (uniparental). It does not involve the fusion of male and female gametes, unlike sexual reproduction.
Statement 2 is Incorrect: Hydra reproduces asexually through a process called budding. In this method, a bud develops as an outgrowth due to repeated cell division at one specific site. This bud eventually detaches from the parent body to become a new independent individual. It does not undergo binary fission.
Statement 3 is Correct: Amoeba is a unicellular organism that reproduces asexually through binary fission. In this process, the parent cell divides into two equal halves, each forming a new individual. This involves the division of the nucleus followed by the division of the cytoplasm.

Key Takeaway: Unicellular organisms like Amoeba typically reproduce via binary fission, whereas multicellular organisms like Hydra reproduce via budding. Both are forms of asexual reproduction involving a single parent.

Your note

More from Chapter 3: Reproduction in animals

With reference to the social organisation in a honey bee hive, consider the following statements: 1. The queen bee is responsible for building the hive. 2. Worker bees are females responsible for building the hive. 3. Drones are male bees that develop from unfertilised eggs. Which of the statements given above is/are correct?

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Consider the following statements about the female reproductive system: 1. Oviducts are also known as fallopian tubes. 2. The uterus is a paired structure located on either side of the abdomen. 3. Fertilisation usually takes place in the oviduct. Which of the statements given above is/are correct?

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Consider the following statements about "Binary Fission": 1. It is a method of asexual reproduction. 2. It is observed in multicellular organisms like Hydra. 3. It involves the division of the body followed by the division of the nucleus. Which of the statements given above is/are correct?

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In the context of hen reproduction, consider the following statements: 1. Hens undergo internal fertilisation. 2. The hard shell of the egg is formed after the egg is laid. 3. The embryo takes about 3 weeks to develop into a chick. Which of the statements given above is/are correct?

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With reference to reproduction in Hydra, consider the following statements: 1. New individuals develop as outgrowths called buds. 2. The buds formed in Hydra never detach from the parent body. 3. This is a form of sexual reproduction. Which of the statements given above is/are correct?

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