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4.Principles of Inheritance and Variation
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Barr bodies and drumsticks are of what significance to genetists and biologists
A
They indicate the presence of abnormal sex cells
B
They indicate the presence of more than one $X$ chromosome in the cells
C
They indicate male calls
D
They signify the presence of sex linked traits
Solution
(b)More than onx $x$-chromosome in females is transformed into Barr bodies and drumsticks.
Standard 12
Biology
Similar Questions
In Drosophila, the allele for a normal grey body colour $G$ is dominant to ebony body $g.$ The following table summarises the results of several crosses
| S.No | Cross | Result |
| $I.$ | Strain $1 \times$ gg | All wild type |
| $II.$ | Strain $2 \times$ gg |
$1$ wild type $:\;1$ ebony |
| $III.$ | Strain $3 \times$ gg | All ebony |
| $IV.$ | Strain $4 \times$ Gg |
$3$ wild type $:\,1$ ebony |
Which strains both have the genotype Gg?
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