The normal eye color of Drosophila is red, but strains in which all flies have brown eyes are available. Similarly, wings are normally long, but there are strains with short wings. A female from a pure line with brown eyes and short wings is crossed with a male from a normal pure line. The F1 consists of normal females and short-winged males. An F2 is then produced by intercrossing the F1. Both sexes of F2 flies show phenotypes as follows:

Are genes for eye color and wing length x link or autosome? 

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#Question id: 14711

#Unit 5. Developmental Biology

Choose right explanations of gastrulation movements,  

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#Question id: 14712

#Unit 5. Developmental Biology

 Match the following cleavage pattern, with their egg type and cleavage type

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#Question id: 14713

#Unit 5. Developmental Biology

Match their cleavage patterns with their belonging animals;

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#Question id: 14714

#Unit 5. Developmental Biology

Eggs are grouped into three types on the basis of the distribution of yolk present in them, choose right combinations accordingly,

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#Question id: 14726

#Unit 13. Methods in Biology

For two events A and B  

(i) not less than P(A) + P(B) -1

(ii)not greater than P(A) + P(B)

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#Question id: 14727

#Unit 13. Methods in Biology

Two persons A and B have respectively n + 1 and n coins, which they toss simultaneously. Then the probability that A will have more heads than B is