which of the following permits the amplification of chosen segments of DNA or RNA for detailed study or cloning.

TLS Online TPP Program

#Question id: 10670

#Unit 10. Ecological Principles

To estimate the number of foxes in an area, a researcher conducted a mark-recapture survey. In the first survey, he caught and marked N number of foxes. In his second survey a week later, he caught 120 foxes of which 90 were unmarked (recaptures). If you are told that the actual number of foxes in this area is 400, what is value of N in this area?

TLS Online TPP Program

#Question id: 15820

#Unit 8. Inheritance Biology

Your friends Ben and Jane are contemplating having children and seek your genetic counsel. Ben and Jane are unrelated, but both have younger brothers with the same, extremely rare genetic trait. (In fact, Ben and Jane met at a support group meeting for children and families of children with this rare disorder.) Ben’s parents and Jane’s parents are all unaffected.          

Assume that the trait is autosomal recessive with complete penetrance. What is the probability that Ben and Jane’s first child will be affected with the trait? If not affected, what is the probability that the child is a carrier?

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#Question id: 1300

#Unit 4. Cell Communication and Cell Signaling

Which of these is NOT a component of plant cell walls?

TLS Online TPP Program

#Question id: 12693

#Unit 8. Inheritance Biology

A panel of cell lines was created by human-mouse cell line hybridization. Each line was examined for the presence of  human chromosome and for the gene production. The following result were obtained;

On the basis of these results, which chromosome has the gene  that encodes the enzyme ?

TLS Online TPP Program

#Question id: 24433

#Unit 1. Molecules and their Interaction Relevant to Biology

Mitochondrial F1 has nine subunits of five different types, with the composition