Genetics — Important Questions
ICSE · Class 10 · Biology
44 important questions from Genetics for ICSE Class 10 Biology, with answers. Includes multiple choice, multiple correct and true false questions.
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Get startedImportant Questions from Genetics
Which of the following are reasons why Mendel selected garden pea for his experiments?
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Annual plant with short life span, Seven pairs of contrasting characters, Self-pollinated and can be cross-pollinated, High yield
Mendel selected garden pea because it is an annual plant (short life span), has seven pairs of easily detectable contrasting characters, is self-pollinated but can be cross-pollinated, and has high yield. Being expensive was not a reason for selection.
Which nitrogenous bases are purines in DNA?
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Adenine, Guanine
Purines are double-ringed compounds in DNA. Adenine and Guanine are purines. Cytosine and Thymine are pyrimidines (single-ringed compounds).
In humans, which parent determines the sex of the child?
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Father
In humans, the father determines the sex of the child because males produce two types of sperms (22+X and 22+Y), while females produce only one type of ovum (22+X). The type of sperm that fertilizes the ovum determines the child's sex.
What is the phenotypic ratio in F2 generation of a monohybrid cross?
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3:1
In a monohybrid cross, the phenotypic ratio in F2 generation is 3:1 (dominant:recessive). The genotypic ratio is 1:2:1. The 9:3:3:1 ratio is for dihybrid cross.
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