GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dianthus flowers can be one of three different colours:red, pink or white. A red flower is always homozygous and a white flower is always homozygous. Pink flowers are heterozygous. If a red and a white flower are crossed, what percentage of the offspring will be pink?
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0%
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25%
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75%
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100%
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Explanation:
Detailed explanation-1: -Osmosis and diffusion both require a concentration gradient. Thus, the correct option is C.
Detailed explanation-2: -In dim light, your pupil expands to allow more light to enter your eye. In bright light, it contracts.
Detailed explanation-3: -The somatic cells are diploid cells and contain 2n chromosomes while the germ cells give rise to gametes which are haploid. They contain half the number of chromosomes or n. Thus, an alligator sperm cells will have the number of chromosomes present in the somatic cells and it contains 16 chromosomes.
Detailed explanation-4: -Row 3, which involves movement of molecule X from low concentration to high concentration, describes active transport.
There is 1 question to complete.