Given  some  statements  about auxin  signal  transduction  pathway;

a) ARFs bind the AuxRE stably, must form dimers promote transcription by binding to two AuxREs arranged in a palindrome

b) inactive heterodimers may act to inhibit ARF–AuxRE binding, thereby blocking either gene activation or repression

c) Protein encodes the AUX/IAA gene family can inhibit the transcription of early auxin response genes by forming inactive heterodimers with ARFs

d) Auxin induces the transcription of the early response genes by promoting the proteolytic degradation of the inhibitory AUX/IAA proteins so that active ARF dimers can form

e) AUX/IAA turnover to involve ubiquitination by a ubiquitin ligase and proteolysis by the massive 26S proteasome complex

f) A negative feedback loop is introduced into the pathway by virtue of the fact that one of the gene families turned on by auxin is AUX/IAA, which inhibits the response.

Find out the correct sequence from the following above statements;

#Question id: 3252

#Unit 11. Evolution and Behavior

 The unaffected brother of a cystic fibrosis affected girl is referred for genetic counseling. Assume that the population is in Hardy-Weinberg equilibrium. Which of the following is correct?  (Cystic fibrosis is an autosomes recessive inheritance with an incidence of 1 in 2500).

#Question id: 3253

#Unit 11. Evolution and Behavior

In a population 64% individuals of 1000 population are affected with autosomes dominant diseased. How many individuals are expected carry at least one dominant allele?

#Question id: 3254

#Unit 11. Evolution and Behavior

Consider a single locus with 2 alleles which are at Hardy-Weinberg equilibrium. If the frequency of the heterozygous genotypes is 0.42, what is the frequency of one homozygote in the population?

#Question id: 3255

#Unit 11. Evolution and Behavior

The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?

#Question id: 3256

#Unit 11. Evolution and Behavior

There are three alleles, A1, A2, and A3, whose frequencies are equal abundance. According the Hardy-Weinberg equilibrium

#Question id: 3257

#Unit 11. Evolution and Behavior

Which of the following statements about evolution is NOT true?