Which of the following could prevent the appearance of the symptoms of an allergy attack?

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#Question id: 10575

#Unit 10. Ecological Principles

If the per capita birth rate (b) and per capita death rate (d) in one year is 0.80 and 0.20 respectively. if the initial population size is 600, what will be net change (dN) in population size in one year

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#Question id: 3519

#Unit 8. Inheritance Biology

If quadruple heterozygote of genotype Aa Bb Cc Dd is self-fertilized, what is the probability of a quadruple heterozygote Aa Bb Cc Dd offspring is assuming independent assortment of all four pairs of alleles.

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#Question id: 5698

#Unit 8. Inheritance Biology

A mechanism that can cause a gene to move from one linkage group to another is

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#Question id: 28454

#Unit 5. Developmental Biology

A researcher performed an experiment during vulva formation in C.elegans;

I- In first experiment destroyed anchor cell 

II- In second experiment destroyed three central VPCs 

What kind of conclusion has been drawn by these experiments?

a) I-Three cells out of six of the equivalence group divide once and contribute to the vulva formation

b) I-all six cells of the equivalence group divide once and contribute to the hypodermal tissue

c) II-three outer cells, which normally form hypodermis, generate vulval cells instead

d) II-three remaining cells normally formed hypodermis as usually

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#Question id: 9577

#Unit 10. Ecological Principles

The epidermal coloration of the African grasshopper is a striking example of irreversible developmental responses to environmental conditions. Which of the following statements is true?