TLS Online TPP Program

#Question id: 305


Conditions for ionic bond formation is / are________

(A) Small cation, large anion

(B) Low IP of cation, high electron affinity of anion

(C) Large cation, small anion and less charge

(D) Less lattice energy

Correct answer is:

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. A, D

  2. B, C and D

  3. B and C

  4. A, B

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TLS Online TPP Program

#Question id: 14486

#Unit 13. Methods in Biology

There are two bags, one of which contains 5 red and 7 white balls and the other 3 red and 12 white balls. A ball is to be drawn from one or other of the two bags, find the chance of drawing a red ball.

TLS Online TPP Program

#Question id: 15008

#Unit 8. Inheritance Biology

You have a white eyed, male fruit fly with vestigial wings and a wild type female known to be heterozygous for both traits. You know that vestigial is located on an autosome. What is the probability that a mating between these two flies will generate a female offspring with vestigial wings and white eyes?

TLS Online TPP Program

#Question id: 15009

#Unit 8. Inheritance Biology

A mutation in which most of the protein coding sequence of the gene is removed is most likely to be which type of allele?

TLS Online TPP Program

#Question id: 15010

#Unit 8. Inheritance Biology

The phenomenon where half the "normal" level of functional protein is not enough to generate a normal phenotype is called haploinsufficiency. Which of the following situations demonstrates haploinsufficiency?

TLS Online TPP Program

#Question id: 15011

#Unit 8. Inheritance Biology

Which of the following statements about a lethal allele is NOT correct?

TLS Online TPP Program

#Question id: 15148

#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;
y
you cross each haploid mutant strain to a different haploid mutant of the opposite mating type. What type of mutation shown in the above figure;