TLS Online TPP Program

#Question id: 9569


Certain thermophilic bacteria live in hot springs at temperatures close to the boiling point of water. What challenges do such bacteria overcome successfully?

#SCPH06 I Botany
  1. Tendency of proteins to denature at high temperatures
  2. Acceleration of chemical processes at high temperatures
  3. Changes in the properties of lipids (and thus properties of membranes) at high temperatures
  4. All of the above
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TLS Online TPP Program

#Question id: 3252

#SCPH28 | Zoology

 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).

TLS Online TPP Program

#Question id: 3253

#SCPH06 I Botany

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?

TLS Online TPP Program

#Question id: 3253

#SCPH28 | Zoology

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?

TLS Online TPP Program

#Question id: 3254

#SCPH06 I Botany

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?

TLS Online TPP Program

#Question id: 3254

#SCPH28 | Zoology

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?

TLS Online TPP Program

#Question id: 3255

#SCPH06 I Botany

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?