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Biology Chapter 9 : Test Yourself
1 / 10
Which of the following is incorrect about asexual reproduction?
Reasoning: Asexual reproduction produces genetically identical offspring (clones) with little variation, so it does not significantly contribute to the evolution of new species.
2 / 10
Which of the following is the benefit of sexual reproduction?
Reasoning: Sexual reproduction mixes genetic material from two parents, creating variation that helps populations adapt and evolve.
3 / 10
Which of the following modes of asexual reproduction generally occurs during unfavorable conditions?
Reasoning: Spores are resistant structures formed to survive harsh or unfavorable environmental conditions.
4 / 10
Which of the following processes is also known as apomixis?
Reasoning: Parthenogenesis is reproduction from an unfertilized egg and is often referred to as a form of apomixis.
5 / 10
Which of the following is compact, thickened, vertically growing, underground stem enveloped by thick, succulent (fleshy) leaves, serving as reservoir of stored nutrients:
Reasoning: A bulb consists of a short stem surrounded by thick, fleshy leaves that store nutrients, e.g., onion.
6 / 10
In Bryophyllum, small plantlets that are much like tiny versions of the parent plant, are created along the:
Reasoning: Bryophyllum reproduces vegetatively by producing plantlets along the margins of its leaves.
7 / 10
If sometimes, the stem cutting does not start growth, then the cut ends must be treated with which of the following special plant hormone to stimulate the growth?
Reasoning: Auxins promote root development and are commonly used in stem cuttings.
8 / 10
The first cell or tiny piece of the parent plant used in tissue culture is called:
Reasoning: An explant is the small piece of plant tissue used to initiate tissue culture.
9 / 10
Which of the following part of the plant that’s been changed and adapted for the job of reproduction:
Reasoning: The flower is the reproductive organ of flowering plants.
10 / 10
Which of the following parts of the flower are called accessory whorls?
Reasoning: Calyx (sepals) and corolla (petals) are accessory whorls because they assist reproduction but do not directly produce gametes.
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