A man can inherit his $X-$chromosome from his
Maternal grandmother or maternal grandfather
Father
Maternal grandfather
Paternal grandfather
Match the following columns.
Column $- I$ | Column $- II$ |
$(w)$ Blood group | $(a)$ Polygenic inheritance |
$(x)$ Skin colour | $(b)$ Aneuploidy |
$(y)$ Mendelian disorder | $(c)$ Incomplete dominance |
$(z)$ Chromosomal disorder | $(d)$ Sickle-cell anaemia |
$(e)$ Co-dominance |
Doctor's son
Select the correct statement:
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 | $(d)\; 3:1$ |
Select incorrect statement
$(A)$ Linked genes cause absolute lethality
$(B)$ Persons affected by $PKU$ do not show mental disorder
$(C)$ $F_{2}$ ratio in codominance and incomplete dominance are same
$(D)$ Sex of male Drosophila is dependent on $Y-$chromosome