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4.Principles of Inheritance and Variation
medium
A man can inherit his $X-$chromosome from his
A
Maternal grandmother or maternal grandfather
B
Father
C
Maternal grandfather
D
Paternal grandfather
Solution
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Standard 12
Biology
Similar Questions
Match the terms in column $I$ with their description in column $II$ and choose the correct option.
Column $-I$ | Column $-II$ |
$(A)$ Dominance | $(i)$ Many genesgovern a single character |
$(B)$ Codominance | $(ii)$ In a heterozygousorganism only one allele expresses itself |
$(C)$ Pleiotropy | $(iii)$ In a heterozygousorganism both alleles express themselves fully |
$(D)$ Polygenic | $(iv)$ A single gene inheritanceinfluences many characters |
Match the following:
Column $- I$ | Column $- II$ |
$(1)$ Inheritance of two genes | $(a)\; ABO$ blood group |
$(2)$ Incomplete dominance | $(b)\; 1:2:1$ |
$(3)$ Codominance | $(c)\;9:3:3:1$ |
$(4)$ Inheritance of one gene | $(d)\; 3:1$ |
medium