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Genetics- Part 1
See all quizzes of Genetics- Part 1 here:
1 Which of the following statements is false ?
A. Human genome contains ~ 30000 – 40000 genes
B. Human DNA consist of ~3 billion base pairs (bp) of DNA per
haploid genome
C. All DNA encodes genes
D. Short arm of chromosome is termed “p”
2 Which of the following statements is false ?
A. DNA is composed of adenine, thymidine, guanine & cytosine
B. Adenine is paired to thymidine
C. Guanine is paired to cytosine
D. RNA is more stable than DNA
3 Which of the following is false about codons ?
A. Triplet of bases
B. Specifies a particular amino acid
C. There are more codons than amino acids
D. None of the above
4 Resting state cells are in which phase ?
A. G0
B. G1
C. G2
D. G3
5 Which phase in cell mitosis is called critical checkpoint ?
A. G0
B. G1
C. G2
D. G3
6 Prader-Willi syndrome consists of all except ?
A. Obesity
B. Short stature
C. Deafness
D. Hypogonadism
7 Albright hereditary osteodystrophy consists of ?
A. Resistance to parathyroid hormone
B. Short stature
C. Brachydactyly
D. All of the above
8 Gene expression requires ?
A. mRNA processing
B. Protein translation
C. Posttranslational modifications
D. All of the above
9 Portion of genes that are eventually spliced together to form
mRNA are called ?
A. Exons
B. Introns
C. Cistron
D. Recon
10 Spacing regions between the exons that are spliced out of precursor
RNAs during RNA processing are called ?
A. Exon
B. Intron
C. Cistron
D. Recon
11 Which of the following defines ‘Totipotency’ ?
A. Ability to form embryo & trophoblast of placenta
B. Ability to differentiate into all cells of all germ layers
C. Ability to differentiate into limited cell lineages appropriate to
the location
D. Ability to generate one cell type
12 Which of the following defines ‘Pluripotency’ ?
A. Ability to form embryo & trophoblast of placenta
B. Ability to differentiate into a limited cell lineages appropriate to
the location
C. Ability to differentiate into all cells of all germ layers
D. Ability to generate one cell type
13 Which of the following defines ‘Multipotency’ ?
A. Ability to form embryo & trophoblast of placenta
B. Ability to differentiate into all cells of all germ layers
C. Ability to differentiate into a limited cell lineages appropriate to
the location
D. Ability to generate one cell type
14 Which of the following defines ‘Unipotency’ ?
A. Ability to form embryo & trophoblast of placenta
B. Ability to differentiate into all cells of all germ layers
C. Ability to differentiate into a limited cell lineages appropriate to
the location
D. Ability to generate one cell type
15 Which of the following is an example of ‘Totipotent cell’ ?
A. Fertilised oocyte or zygote
B. Embryonic stem cells
C. Adult, somatic stem cells
D. Type II pneumocyte
16 Which of the following is an example of ‘Pluripotent cell’ ?
A. Fertilised oocyte or zygote
B. Embryonic stem cells
C. Adult, somatic stem cells
D. Type II pneumocyte
17 Which of the following is an example of ‘Multipotent cell’ ?
A. Fertilised oocyte or zygote
B. Embryonic stem cells
C. Adult, somatic stem cells
D. Type II pneumocyte
18 Which of the following is an example of ‘Unipotent cell’ ?
A. Fertilised oocyte or zygote
B. Embryonic stem cells
C. Adult, somatic stem cells
D. Type II pneumocyte
19 Each of the 32 – 128 cells in morula is ?
A. Totipotent
B. Pluripotent
C. Multipotent
D. Unipotent
20 Cells in Inner Cell Mass (ICM) of human blastocyst are ?
A. Totipotent
B. Pluripotent
C. Multipotent
D. Unipotent
21 When does ICM form in blastocyst ?
A. Prior to implantation
B. Simultaneously with implantation
C. After implantation
D. Any of the above
22 In humans, time from fertilization to implantation in uterine wall
is about ?
A. 3 days
B. 7 days
C. 14 days
D. 21 days
23 Liver is formed from ?
A. Endoderm
B. Mesoderm
C. Ectoderm
D. All of the above
24 Thyroid is formed from ?
A. Endoderm
B. Mesoderm
C. Ectoderm
D. All of the above
25 Eyes and ears are formed from ?
A. Endoderm
B. Mesoderm
C. Ectoderm
D. All of the above
26 Kidney tubules are formed from ?
A. Endoderm
B. Mesoderm
C. Ectoderm
D. All of the above
