Practice Questions

TLS Online TPP Program

#Question id: 5332

Which of the following are incorrect regarding Sex chromosome in human?

#SCPH28 | Zoology

The X chromosome contains genetic information essential for only female sexes
The male-determining gene is located on the Y chromosome.
A female usually needs at least two copies of the X chromosome to be fertile.
Additional copies of the X chromosome may upset normal development in both males and females

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TLS Online TPP Program

#Question id: 850

#SCPH06 I Botany

The experimental inverse of protein structure prediction, has provided insights into protein folding and stability. Protein design attempts to construct an amino acid sequence that will form a structure such as a sandwich of β sheets or a bundle of α helices;

TLS Online TPP Program

#Question id: 14148

#I Life Science/ Life Sciences Group – I-V

Dynamic programming determines optimal alignment by matching two sequences for all possible pairs of characters between the two sequences.

Reason(R): Use of the dynamic programming method requires a scoring system to account for matches and mismatches between sequences, and a scheme for Gap penalties.

TLS Online TPP Program

#Question id: 18593

#SCPH28 | Zoology

Some important events in the history of life on Earth are given below.

A. First dinosaurs appeared.

B. First reptiles appeared.

C. First insect fossils appeared.