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#Question id: 15855


In which drosophila developmental stage early promoter becomes active and the Sxl gene is transcribed?

#Unit 5. Developmental Biology
  1. Syncytial blastoderm
  2. Cellular blastoderm
  3. Germ cell determination
  4. Mid-blastula transition
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TLS Online TPP Program

#Question id: 2288

#Unit 2. Cellular Organization

Proteins lacking a signal peptide sequence will probably found in

TLS Online TPP Program

#Question id: 3487

#Unit 11. Evolution and Behavior

Which of the following is true of innate behaviors?

A) Genes have very little influence on the expression of innate behaviors.

B) Innate behaviors tend to vary considerably among members of a population.

C) Innate behaviors are limited to invertebrate animals.

D) Innate behaviors are expressed in most individuals in a population across a wide range of environmental conditions.

E) Innate behaviors occur in invertebrates and some vertebrates but not in mammals.

TLS Online TPP Program

#Question id: 22953

#Unit 5. Developmental Biology

The MADS box gene form tetramers that bind to 

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#Question id: 24033

#General Aptitude

All India Radio before 1936 was known as:

TLS Online TPP Program

#Question id: 15147

#Unit 8. Inheritance Biology

You have isolated a set of five yeast mutants that form dark red colonies instead of the usual white colonies of wild-type yeast. You cross each of the mutants to a wild-type haploid strain and obtain the results shown below;
you cross each haploid mutant strain to a different haploid mutant of the opposite mating type. From the results shown below deduce as much as you can about which mutations lie in the same gene. Clearly state any remaining ambiguities and suggest some general ways that the ambiguities might be resolved
a) That mutants 1 and 3 form one complementation group and are mutations in the same gene (gene A) 
b) That mutations 2 and 5 form a second complementation group and are mutations in a second gene (gene B).
c) That mutations 3 and 5 form a second complementation group and are mutations in a second gene (gene B).
d) The first ambiguity is whether mutant 4 has a mutation in gene A or B, or whether it represents a unique gene.
Which of the following is the correct prediction about mutants?