Practice Questions

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#Question id: 15007

You set up a cross between true breeding wild type male fruit flies and true breeding female flies with a yellow body color. You notice in the F1 generation that half the flies, specifically all the males, have yellow body color while the females are wild type (gray). Which of the following explanations is the most likely?

#SCPH12 I Genetics

Some of your females had already mated with yellow males before you collected them.
Some of your parental flies must have had a new mutation in their germ cells.
The mutation which causes yellow body color is on the X chromosome.
The mutation which causes yellow body color is on the Y chromosome.

More Questions

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#Question id: 1547

#SCPH05 I Biotechnology

follicular dendritic cells (FDCs) secrete CXCL13 and its receptor, CXCR5, which is expressed on B cells, function of this interaction ?

TLS Online TPP Program

#Question id: 15588

#SCPH05 I Biotechnology

For a Rushton turbine impeller (Reynold’s number greater than 10,000) when RPM is doubled, the power absorption increases by:

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#Question id: 565

#I Life Science/ Life Sciences Group – I-V

A transition-state analog:

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#Question id: 3528

#SCPH12 I Genetics

Consider the following cross:

A/a ; B/b ; C/c ; D/d ; E/e X a/a ; B/b ; c/c ; D/d ; e/e

What proportion of progeny will phenotypically resemble the first parent?

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#Question id: 6996

#SCPH28 | Zoology

During metamorphosis, a tadpole's tail is reduced in size by the process of ________.