biology
chemistry
physics
miscellaneous
biology mcqs
chemistry mcqs
physics mcqs

Start typing to see results.

Subjects

biology
chemistry
physics
miscellaneous
biology mcqs
chemistry mcqs
physics mcqs

miscellaneous

coding
- Mastering Clean Code: Essential Tips for Every Developer
reactjs notes series

Molecular Basis of Inheritance: MCQ Test

Test your comprehensive knowledge of DNA structure, replication, transcription, genetic code, translation, gene regulation, the Human Genome Project, and DNA fingerprinting with these challenging multiple-choice questions.

Test Your Knowledge

Showing questions 141 - 160 of 169

141. The enormous amount of data generated by HGP necessitated the use of high-speed computational devices, leading to the rapid development of what new area in biology?

Genomics
Proteomics
Bioinformatics
Metabolomics

The enormous amount of data expected to be generated also necessitated the use of high speed computational devices for data storage and retrieval, and analysis. HGP was closely associated with the rapid development of a new area in biology called Bioinformatics [83, 84].

142. What was one of the important goals of HGP regarding the number of genes in human DNA?

Identify approximately 80,000-1,40,000 genes
Identify approximately 20,000-25,000 genes
Identify exactly 30,000 genes
Identify all genes including unknown functions

Some of the important goals of HGP were as follows: (i) Identify all the approximately 20,000-25,000 genes in human DNA [84].

143. The Human Genome Project was coordinated by which two major US departments?

U.S. Department of Energy and National Science Foundation
U.S. Department of Energy and the National Institute of Health
U.S. Department of Agriculture and National Institute of Standards
U.S. Department of Education and National Academy of Sciences

The Human Genome Project was a 13-year project coordinated by the U.S. Department of Energy and the National Institute of Health [85].

144. When was the Human Genome Project completed?

1990
2000
2003
2006

The project was completed in 2003 [85].

145. One major approach of HGP focused on identifying all the genes that are expressed as RNA. What was this approach referred to as?

Sequence Annotation
Whole Genome Sequencing
Expressed Sequence Tags (ESTs)
DNA Fingerprinting

One approach focused on identifying all the genes that are expressed as RNA (referred to as Expressed Sequence Tags (ESTs)) [86].

146. The other major approach involved simply sequencing the whole set of genome that contained all the coding and non-coding sequences. What term was used for later assigning different regions in the sequence with functions?

Expressed Sequence Tags
Gene Mapping
Sequence Annotation
Polymorphism detection

The other took the blind approach of simply sequencing the whole set of genome that contained all the coding and non-coding sequence, and later assigning different regions in the sequence with functions (a term referred to as Sequence Annotation) [86].

147. What specialized vectors were commonly used for cloning DNA fragments in HGP?

Plasmids and Cosmids
BAC (bacterial artificial chromosomes) and YAC (yeast artificial chromosomes)
Viruses and Phages
Ti plasmids and Lambda phages

The commonly used hosts were bacteria and yeast, and the vectors were called as BAC (bacterial artificial chromosomes), and YAC (yeast artificial chromosomes) [87].

148. The fragments in HGP were sequenced using automated DNA sequencers that worked on the principle of a method developed by whom?

James Watson
Francis Crick
Frederick Sanger
Kary Mullis

The fragments were sequenced using automated DNA sequencers that worked on the principle of a method developed by Frederick Sanger [87].

149. Which human chromosome's sequence was completed last, in May 2006?

Chromosome X
Chromosome Y
Chromosome 1
Chromosome 22

The sequence of chromosome 1 was completed only in May 2006 (this was the last of the 24 human chromosomes – 22 autosomes and X and Y – to be sequenced) [88].

150. The human genome contains approximately how many million base pairs?

316.47 million bp
3164.7 million bp
3.1647 billion bp
Both B and C

The human genome contains 3164.7 million bp [89].

151. What is the approximate average size of a human gene in bases?

300 bases
3000 bases
30,000 bases
2.4 million bases

The average gene consists of 3000 bases [89].

152. What is the largest known human gene, and how many bases does it contain?

Hemoglobin, 1000 bases
Insulin, 500 bases
Dystrophin, 2.4 million bases
Collagen, 1 million bases

The largest known human gene being dystrophin at 2.4 million bases [90].

153. The total number of genes in the human genome is estimated at approximately how many?

80,000 to 1,40,000
20,000 to 25,000
30,000
3.3 billion

The total number of genes is estimated at 30,000 – much lower than previous estimates of 80,000 to 1,40,000 genes [90].

154. Approximately what percentage of nucleotide bases are exactly the same in all humans?

90%
95%
99.9%
100%

Almost all (99.9 per cent) nucleotide bases are exactly the same in all humans [90].

155. Less than what percentage of the human genome codes for proteins?

Less than 2 per cent of the genome codes for proteins [90].

156. What portion of the human genome do repeated sequences make up, and what is their thought function?

Small portion, direct coding
Very large portion, no direct coding function
Medium portion, regulatory function
Only in centromeres, coding

Repeated sequences make up a very large portion of the human genome. They are thought to have no direct coding functions, but they shed light on chromosome structure, dynamics and evolution [90, 91].

157. Which chromosome has the most genes, and which has the fewest?

Chromosome X and Chromosome Y
Chromosome 1 and Chromosome Y
Chromosome 1 and Chromosome X
Chromosome 22 and Chromosome Y

Chromosome 1 has most genes (2968), and the Y has the fewest (231) [91].

158. DNA fingerprinting is a quick way to compare DNA sequences of individuals, identifying differences in what specific regions?

Coding regions
Promoter regions
Repetitive DNA
Exon regions

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence called as repetitive DNA [92].

159. Depending on base composition, length of segment, and number of repetitive units, satellite DNA is classified into many categories, such as what?

Microsatellites and Minisatellites
Telomeres and Centromeres
Introns and Exons
Promoters and Terminators

Depending on base composition... the satellite DNA is classified into many categories, such as micro-satellites, mini-satellites etc. [93].

160. Why are repetitive sequences, which show a high degree of polymorphism, very useful identification tools in forensic applications?

They code for unique proteins
DNA from every tissue shows the same degree of polymorphism
They are unique to each cell
They are easily extracted

Since DNA from every tissue (such as blood, hair-follicle, skin, bone, saliva, sperm etc.), from an individual show the same degree of polymorphism, they become very useful identification tool in forensic applications [93].

1 ... 7 8 9

Genetics: Principles of Inheritance and Variation MCQ Test

Evolution: MCQ Test

biology

class 11
class 12

chemistry

class 12

physics

miscellaneous

coding
- Mastering Clean Code: Essential Tips for Every Developer
reactjs notes series

biology mcqs

class 11
class 12