Poly- L -leucine in an organic solvent such as dioxane is a helical, whereas poly- L isoleucine is not. Why do these amino acids with the same number and kinds of atoms have different helix-forming tendencies?

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#Question id: 41072

#Unit 8. Inheritance Biology

Q.Which of the following scenarios is a dominant-negative mutation most likely to be observed?

TLS Online TPP Program

#Question id: 41073

#Unit 8. Inheritance Biology

Q. A researcher is studying a novel receptor kinase involved in cell signaling. The functionally active form of this receptor is a homodimer that forms at the cell membrane upon ligand binding. The researcher isolates a mutant allele that produces a structurally altered, kinase-dead version of the receptor. When a heterozygous cell line (carrying one normal allele and one mutant allele) is generated, signaling is almost completely abolished, mimicking a null phenotype. Biochemical analysis reveals that the mutant protein is stably expressed and still binds to the normal protein.

which of the following best explains this observation?

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#Question id: 41074

#Unit 8. Inheritance Biology

Q. What is the primary advantage of utilizing conditional mutants in genetic research?

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#Question id: 5687

#Unit 8. Inheritance Biology

The error in meiosis that produces a 47,XYY karyotype is best  described by

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#Question id: 5688

#Unit 8. Inheritance Biology

Which of the following are not cause of aneuploidy

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#Question id: 5689

#Unit 8. Inheritance Biology

What kind of aneuploidy gamete will be generated if meiotic nondisjuction in second division (n represent haploid number of chromosome )