Molecuar biology...16,17,18,19,20 Qs - maryam2009

[ArchivalUser]

High yield Qs


16.A homeo box is a
A. sequence of DNA that codes for a zinc-finger protein
B. sequence of RNA that binds to other RNAs
C. sequence of DNA that codes for the helix-turn-helix domain of a protein
D. a protein that binds GTP


17.The mutant allele of a tumor suppressors gene is
A.inherited through the maternal line
B.recessive to the normal allele
C.dominat to the normal allele
D.inherited through the paternal line

18. Which of the following would not be a function of an oncogene?
A. code for a tyrosine kinase
B. code for a DNA-binding protein
C. code for a GTP-binding protein
D. code for a gap protein


19.Once an exogenous piece of DNA is in the bacterial cell, it is incorporated into the bacterial genome through
A. gene conversion
B. crossing-over
C. translocations
D. mutations

20.The process by which a bacterial cell picks up exogenous pieces of DNA directly from the media and incorporates it into its genome is called
A. conjugation
B. transformation
C. transduction
D. translocation

[ArchivalUser]

16-C
17-B
18-D
19-B
20-B

nice Q thanks

[ArchivalUser]

Sarim, can you explain 19 please

[ArchivalUser]

19- is the process of "Transformation"

-once the "DNA fragment" is picked up, it get incorporated into the host cell genome via
"Homologous Recombination" which is done by Crossing-Over.

[ArchivalUser]

The correct answers are :

16-C
17-B
18-D
19-B
20-B

Thank you Sarim

[ArchivalUser]

Thank you Sarim