Questions and answers for exam Preparation

MCQs

Total Questions : 165 | Page 12 of 17 pages

Question 111. A third category of TEs has features of both class I and class II TEs. These miniature, inverted repeat TEs (MITES) are ________ in length.

400 bp
500 Mbp
300 kbp
600 kbp

Discuss Question

Answer: Option A. -> 400 bp
Answer: (a).400 bp

Question 112. Introns can remain at a corresponding position in a eukaryotic gene for long periods of evolutionary time.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 113. The intron structure of genes in a particular eukaryote is used for predicting the location of genes of genome sequences.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 114. Eukaryotic genes that encode proteins are interrupted by ________

exons of varying length and number
introns of varying length and number
exons of varying length and but same number
introns of varying number but same length

Discuss Question

Answer: Option B. -> introns of varying length and number
Answer: (b).introns of varying length and number

Question 115. Which of the given features is incorrect?

TEs are present in few particular chromosomes
TEs are present in all of the chromosomes
Abundance of TEs varies
TEs can comprise a large portion of the genomes of higher eukaryotes, both plants and animals

Discuss Question

Answer: Option A. -> TEs are present in few particular chromosomes
Answer: (a).TEs are present in few particular chromosomes

Question 116. To sequence larger molecules, individual chromosomes are purified and broken into _____ or larger random fragments, which are cloned into vectors designed for large molecules.

100-Mb
100-kb
5000-kb
600-kb

Discuss Question

Answer: Option B. -> 100-kb
Answer: (b).100-kb

Question 117. An alternative method is to sequence all the subclones, produce a computer database of the sequences, and then have the computer assemble the sequences from the overlaps that are found.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 118. Many levels of clone redundancy may be required to build a consensus map because individual clones can have _______

rearrangements
deletions
two separate fragments
vectors

Discuss Question

Answer: Option D. -> vectors
Answer: (d).vectors

Question 119. Once the correct map has been obtained, unique overlapping clones are chosen for sequencing.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 120. Which of the following is untrue about Shotgun Sequencing?

When DNA fragments derived from different chromosomal regions have repeats of the same sequence, they will appear to overlap
When DNA fragments derived from different chromosomal regions have repeats of the same sequence, they will appear to scrutinize
In a new whole shotgun approach, Celera Genomics is sequencing both ends of DNA fragments of short (2 kb), medium (10 kb), and long (BAC or >100 kb) lengths
A large number of reads are then assembled by computer

Discuss Question

Answer: Option B. -> When DNA fragments derived from different chromosomal regions have repeats of the same sequence, they will appear to scrutinize
Answer: (b).When DNA fragments derived from different chromosomal regions have repeats of the same sequence, they will appear to scrutinize