Download Assignment 4 answer key

Biology for engineers and other non-biologists
Assignment 4 (Week 4) answer key
The correct option is highlighted
1. The process of synthesis of RNA from DNA is called?
a)
b)
c)
d)
Replication
Transcription
Translation
Ligation
2. Hemophilia is an example of
(a)
(b)
(c)
(d)
An X-linked disorder
A Y-linked disorder
Can be either of the above
None of the above
3. Which of the following statements about the genetic code false?
a)
b)
c)
d)
Each codon consists of three nucleotides
All the 64 codons code for amino acids
More than one codons can code for the same amino acid
A given codon always codes for only one amino acid
4. Co-dominance occurs when
(a) Dominance is absolute and determined by one allele
(b) The same gene affects multiple characters
(c) A character is determined by multiple alleles
(d) All alleles of a gene are expressed at the same time
5. The molecules that transfer the amino acids to the site of protein synthesis are?
a)
b)
c)
d)
DNA
mRNA
rRNA
tRNA
6. The effect of soil acidity on the color of Hydrangea flowers is an example of
(a) Pleiotropy
(b) Epistasis
(c) Environmental impact on phenotypes
(d) Incomplete dominance
7. Which of the following is the complimentary sequence for the given sequence?
5’- ATGCTGCAGCATCATG - 3’
a)
b)
c)
d)
5’- TACGACGTGTAGGTAC – 3’
3’- ATGCTGCAGCATCATG – 5’
5’- CATGATGCTGCAGCAT – 3’
3’- GTACTACGACGTCGTA – 5’
8. Choose the correct statement
(a) Principles of Mendelian inheritance can always be used to explain expression of
characters
(b) The number of genes is directly proportional to the size of the organism
(c) Animal cells always have more genes than plant cells
(d) None of the above
9. Which of the following is the property of an mRNA molecule?
a)
b)
c)
d)
It has a 5’ cap
It has a poly-Adenine tail in the 3’ end
It has Uracil instead of Thymine
All of the above
10. DNA replication is called semi-conservative because?
a) Each parent molecule of DNA gives rise to one daughter molecule with two new
strands
b) Each parent molecule of DNA gives rise to two daughter molecules, one with old
strands and the other with new strands
c) Both the daughter DNA molecules have one new strand and one old strand from
the parent DNA molecule
d) Both the daughter strands are synthesized in 5’-3’ direction on the parent DNA
strands as template.