Find true and false statements

A. Comparisons of related genes in different species show that the sequences of the corresponding exons are usually conserved

B. when two genes are related, the relationship between their exons is closer than the relationship between their introns.

C. The sequences of the introns are much less similar.

D. Introns evolve much more rapidly than exons because of the lack of selective pressure to produce a polypeptide with a useful sequence.

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#Question id: 6584

#General Aptitude

find the missing letter

A    ?   Q    E

C    M   S    C

E    K    U   A

G    I    W   Y

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#Question id: 12851

#General Aptitude

The length of two parallel sides of a trapezium are 15 cm and 20 cm. If its area is 175 sq.cm, then its height is :

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#Question id: 31045

#Unit 4. Cell Communication and Cell Signaling

Ras proteins (RasD) contain a mutation at position 12. Replacement of the normal glycine 12 with any other amino acid-

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#Question id: 10885

#Unit 10. Ecological Principles

In a field experiment, autotrophs are provided a 14C-labelled carbon compound for photosynthesis. Radioactivity (14C) levels were then monitored at regular intervals in all the trophic levels. In which ecosystem is the radioactivity likely to be detected in longer time at the higher trophic level?

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#Question id: 3830

#Unit 3. Fundamental Processes

Why is DNA damage in skin cells from exposure to excessive UV light not completely reversed by photoreactivation?