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TLS Online TPP Program

#Question id: 3842

Which of the following statements correctly describes the difference between the leading strand and the lagging strand in DNA replication?

#Unit 3. Fundamental Processes

  1. The leading strand is synthesized in the 3' → 5' direction in a discontinuous fashion, while the lagging strand is synthesized in the 5' → 3' direction in a continuous fashion.

  2. The leading strand is synthesized continuously in the 5' → 3' direction, while the lagging strand is synthesized discontinuously in the 5' → 3' direction.

  3. The leading strand requires an RNA primer, whereas the lagging strand does not.

  4. There are different DNA polymerases involved in elongation of the leading strand and the lagging strand.

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TLS Online TPP Program

#Question id: 4764

#Unit 8. Inheritance Biology

Which of the following is the best example of overdominance?
TLS Online TPP Program

#Question id: 636

#Unit 1. Molecules and their Interaction Relevant to Biology

DNA polymerase contains a lysine residue that is important for binding to DNA. Mutations were found that converted this lysine to either glutamate, glycine, valine, or arginine. Which mutations would be predicted to be the most and least harmful to the ability of the enzyme to bind DNA?

Most

Least

(A)

Valine

Aspartate

(B)

Glycine

Arginine

(C)

Arginine

Glycine

(D)

Glutamate

Arginine

TLS Online TPP Program

#Question id: 4219

#Unit 3. Fundamental Processes

Which of the following statements correctly describes Archibald Garrod's hypothesis for how "inborn errors of metabolism" such as alkaptonuria occur?
TLS Online TPP Program

#Question id: 6588

#General Aptitude

26

18

10

11

9

7

5

4

1

10

5

?

TLS Online TPP Program

#Question id: 1177

#Unit 4. Cell Communication and Cell Signaling

Binding of hormone to a receptor tyrosine kinase causes all of the following, except: