MCQ
he genotype of offspring formed from Tt x tt will be ________?
- ATT and tt
- BTt and tt
- COnly tt
- DOnly TT
Explanation:
The heterozygous parent can produce two types of gametes one having T allele and other having t allele.
However, second parent being homozygous can produce only one type of gamete having t allele.
Random mixing of these gametes will produce following progeny:
Tt one half the total number of progeny.
tt one half the total number of progeny.
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| 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 |