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DNA And Protein Synthesis
Test Description: This review test will enable students to revise concepts around the DNA and its role in protein synthesis.
Instructions: Answer all questions to get your test result.
1) Define ecology
A
the study of fossils
B
the study of plants
C
the study of ecosystems
D
the study of nature
2) How many chromosomes are found in a mature diploid cell
A
2
B
23
C
46
D
4
3) The organic molecle that that act as a blue print for protein synthesis
A
mRNA
B
rRNA
C
tRNA
D
DNA
4) Which of the following is a base found only on the RNA and not on the DNA?
A
adenine
B
uracil
C
cytocine
D
guanine
5) What is the minimum number of amino acids needed to have a complete protein molecule?
A
50
B
more than 1
C
anything above 1
D
atleast 2
6) What is trisomy 21?
A
down's syndrome
B
sickle celled anaemia
C
karyotype
D
polyploidy
7) A haploid cell has how chromatids?
A
46
B
92
C
none of the above
D
23
8) The coding of the mRNA by the DNA takes place in the..
A
nucleolus
B
cytoplasm
C
ribosome
D
nucleus
9) The father of genetics
A
G. Mendel
B
Gallelio
C
Charles Darwin
D
Watson
10) A point of crossing-over on the bivalent pair
A
chiasmata
B
centreole
C
centromere
D
chromatid
*select an answer for all questions
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