Practice Questions

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#Question id: 13106

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.)
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.

Why is it that some people only have one band?

#SCPH28 | Zoology

They are homozygotes for the allele that can be cut.
They are homozygotes for the allele that cannot be cut.
They are heterozygotes, and possess one allele that can be cut and one allele that cannot be cut.
The more repeats you have, the longer your DNA fragment.

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#Question id: 15140

#SCPH01 Biochemistry

Two types of pair-wise sequence alignment of the same hypothetical protein sequence fragments are illustrated in the figure below. Vertical bars between the sequences indicate the presence of identical amino acids. * symbols in Figure Y indicate residues not included in the alignment.

Which one of the following is correct?

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#Question id: 19341

#SCPH06 I Botany

________ is a device which detects the changes in temperature?

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#Question id: 20847

#SCPH28 | Zoology

In groundwater hydrocarbon spill which metal reduction was the major electron accepting process?

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#Question id: 6997

#SCPH28 | Zoology

Hans Spemann and colleagues developed the concept of the "organizer" in amphibian embryos while studying the ________.

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#Question id: 8851

#SCPH06 I Botany

Why is territoriality an adaptive behavior for songbirds maintaining populations at or near their carrying capacity?