Laurie met her husband Jim at a support group for families dealing with PKU (phenylketonurea), a recessive genetic disorder. Laurie and Jim both have one sister who is affected with PKU and no other family history of the disorder. They come to you as a genetic counselor to ask what their risk is of having an affected child. What do you tell them?

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#Question id: 28244

#Unit 5. Developmental Biology

In male Drosophila, which of the following cell is undergo a committed progenitor cell that divides to become the precursors of the sperm?

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#Question id: 20405

#Unit 3. Fundamental Processes

Which of the following holds true for Introns 

a) Introns have negative Fold Potential i.e., potential to form stem loop

b) Introns have positive Fold Potential i.e., potential to form stem loop

c) Introns are nucleotide sequence which cannot encode functional proteins or polypeptides

d) Introns do not have a sequence-specific function.

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#Question id: 4748

#Unit 8. Inheritance Biology

Eye color in Drosophila present on X chromosome, Red eye color is dominant over white eye color. There is non disjunction in Meiosis I in female and normal meiosis in male. Female is white eye color was cross with red eye male. What will be expected phenotype in their progeny?

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#Question id: 3376

#Unit 11. Evolution and Behavior

The frequencies of two allele’s p and q for a gene locus in a population at Hardy-Weinberg equilibrium are 0.6 and 0.4, respectively. After a few generations of inbreeding, the heterozygote frequency was found to be 0.10, The inbreeding coefficient in this case is

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#Question id: 5525

#Unit 5. Developmental Biology

"ontogeny recapitulates phylogeny" means