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#Question id: 16130
#Unit 13. Methods in Biology
You are studying regulation of the yeast enzyme glutamine synthetase (GS), which is encoded by the GLN1 gene. You have isolated two mutants, designated gln2– and gln3–, that give decreased GS activity. Mating of either gln2– or gln3– haploids to wild type produces heterozygous diploids that show normal amounts of GS expression. When you cross either a gln2– or gln3– haploid to a gln1– strain the resulting diploids show normal expression of GS.
How many units of ß-galactiosidase would you expect to be expressed from deletion 1 in a gln2– mutant?
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#Question id: 12425
#Unit 10. Ecological Principles
Currently, the major cause of extinction is
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#Question id: 28335
#Unit 5. Developmental Biology
Gap genes regulate the transcription of pair-rule genes, which are responsible to___
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#Question id: 23287
#Unit 8. Inheritance Biology
Chromosome mutations can be grouped into three basic categories:
I) Chromosome rearrangements
II) Aneuploidy
III) Polyploidy
these mutation alters the number and structure of chromosomes such as,
a) One or more individual chromosomes are added or deleted
b) The loss of a chromosomal segment
c) A piece of a chromosome might be duplicated, deleted, or inverted
d) One or more complete sets of chromosomes are added
e) In which one or more copies of a DNA segment is produced
Find out the correct pairing of chromosomal mutations,
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#Question id: 12841
#General Aptitude
In a triangle ABC, AB = 8 cm, AC= 10 cm and <B = 90°, then the area of DABC is