In sea urchins, the "fast block" and the longer lasting "slow block" to polyspermy, respectively, are ________.

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#Question id: 12171

#Unit 8. Inheritance Biology

In the case of recessive lethal, showing lethality with X^w.  If the female grasshopper  with the genotype (X^+ X^w) is cross with the male grasshopper with the genotype (X^+O) , then what will be the probability of showing lethality in male and female?

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#Question id: 12172

#Unit 8. Inheritance Biology

In haplodiploid condition, hymnoptera  insects  female mates with a single male , find the mean genetic relatedness of;

i) the females in the progeny are related to,

ii) the males in the progeny are related to,

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#Question id: 12173

#Unit 8. Inheritance Biology

Female with only one X chromosome is a characteristics of individual with

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#Question id: 12174

#Unit 8. Inheritance Biology

Red-eyed female (X ^+X^+ ) crossed with white-eyed male (X^w Y) , all the F1 progeny shows the red phenotype, then what will be the probability of F2 phenotype;

 i)  Male with red eye phenotype

ii) Female with white eye phenotype

iii) Female with red eye phenotype

iv) Male with white eye phenotype

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#Question id: 12175

#Unit 8. Inheritance Biology

Colour blind are X-linked disorder, a colour blind male have daughter cross with colour blind male, then what will be the probability of colour blindness?

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#Question id: 12176

#Unit 8. Inheritance Biology

In a Z-linked characteristic, Cameo plumage, which produces brown feathers, while the wild-type plumage is a glossy metallic blue. If  a pure blue-colored male is crossed with a cameo female, then what will be the probability of blue and cameo plumage of male and female in F2 phenotype?