In an experiment with drosophila eye colour purple/red and wing shape normal/vestigial you observe that offspring mainly have either purple vestigial trait or red normal trait. What is the expected parental trait?

Red vestigial and purple vestigial

Purple vestigial and red vestigial

Explore topic-wise MCQs in Cytogenetics.

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1.	In an experiment with drosophila eye colour purple/red and wing shape normal/vestigial you observe that offspring mainly have either purple vestigial trait or red normal trait. What is the expected parental trait?
A.	Purple long and Red long
B.	Red Vestigial and purple long
C.	Red vestigial and purple vestigial
D.	Purple vestigial and red vestigial
Answer» E.

Discussion

2.	What will be the dyhybrid ratio for a cross between HH TT with hh tt?
A.	1:2:1
B.	9:3:3:1
C.	All same
D.	3:1
Answer» D. 3:1

Discussion

3.	In an organism you observe that phenotypes of the progeny are as 315 H/H R/R, 108 H/-r/r, 101 h/h R/-, 32 h/h r/r. This shows_____
A.	Linkage
B.	Lethal alleles
C.	Epistasis
D.	Normal ratio
Answer» E.

Discussion

4.	If you include more number of genes in the cross, a branched diagram will be easier to find progeny phenotype.
A.	True
B.	False
Answer» B. False

Discussion

Explore topic-wise MCQs in Cytogenetics.

In an experiment with drosophila eye colour purple/red and wing shape normal/vestigial you observe that offspring mainly have either purple vestigial trait or red normal trait. What is the expected parental trait?

What will be the dyhybrid ratio for a cross between HH TT with hh tt?

In an organism you observe that phenotypes of the progeny are as 315 H/H R/R, 108 H/-r/r, 101 h/h R/-, 32 h/h r/r. This shows_____

If you include more number of genes in the cross, a branched diagram will be easier to find progeny phenotype.