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?

#SCPH05 I Biotechnology

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: 5054

#SCPH01 Biochemistry

when one group of cells changing the behavior of an adjacent set of cells, thereby causing them to change their shape, mitotic rate, or cell fate. This kind of interaction at close range between two or more cells or tissues of different histories and properties is called as-

TLS Online TPP Program

#Question id: 5239

#SCPH06 I Botany

Which of the following statements is not true for Hfr strains of E. coli ?

TLS Online TPP Program

#Question id: 1299

#SCPH06 I Botany

Pectins and hyaluronic acid are both:

TLS Online TPP Program

#Question id: 2742

#SCPH05 I Biotechnology

In the beads on a string model, the bead is made up of __________