WorksheetsUnit 6 DNA (Practice Questions)
Total questions: 3
Worksheet time: 2mins
Name
Class
Date
1.
What is the FIRST STEP in Protein Synthesis in a cell?
a)
ribosomes attach to mRNA
b)
tRNA attaches amino acids to the mRNA strand
c)
DNA strand unwinds between the base pairs
d)
amino acids are linked by peptide bonds
2.
Why are females LESS LIKELY to express this X-linked trait?
a)
Each female (XX) has a normal X chromosome that masks the affected X chromosome..so probability decreases
b)
The Y chromosome in each male masks the affected X chromosome
c)
Each female has an XY chromosome pair that easily expresses the trait
d)
Each female (XX) has a normal X chromosome that masks the affected X chromosome..so probability increases
3.
Which is NOT true of Viruses?
a)
They can reproduce
b)
They can evolve
c)
They hold genetic information
d)
They are made up of cells
100 %
