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WorksheetsMonohybrid Cross
Total questions: 10
Worksheet time: 5mins
If Aa is self-crossed, what is the genotypic ratio?
1/2Aa:1/2aa
1/4AA:1/2Aa:1/4aa
3/4AA:1/4aa
None of the above
An allele (T) for tongue-rolling is dominant over non-tongue rolling. What would be the genotypes of both parents if all of the offspring in the F1 generation are non-tongue rolling?
TT X Tt
Tt X tt
tt X tt
TT X tt
In garden pea plant, long stem is dominant over short stem. How many percent will be short stem garden pea plants that may appear in the first filial generation if both parents are heterozygous for the given trait?
25% short stem pea plant
50% short stem pea plant
75% short stem pea plant
100% short stem pea plant
Which of these gene pairs are heterozygous?
Aa
AA
aa
Both b and c
Which of these crosses could have a genotypic ratio of 1: 0?
Dd X Dd
DD X dd
DD X Dd
Dd X dd
What is the other term for homozygous?
(a)
Who is the father of genetics?
(a)
Round seed plant is dominant over wrinkled. If a hybrid(Rr) is self-pollinated, how many % will be purebred round seed?
(a)
Refer to Q8. What is the recessive trait?
(a)
What do you call the cross that involves one trait with opposing characters?
(a)
