A
O
B
AB
Correct answer is A
No explanation has been provided for this answer.
0%
25%
50%
75%
Correct answer is A
No explanation has been provided for this answer.
If a person has two alleles of the sickle cell anaemia gene, the person
is a heterozygous carrier of the disease
is immune to the disease and cannot pass it on to an offspring
has the disease
is probably of Asian ancestry
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements best describes protein synthesis?
DNA is directly involved in translation
translocating the ribosomes exposes a new codon for base pairing with an amino acid
Each tRNA with a particular anticodon always carries a different protein in the process
One amino acid is always carried by more than one
Correct answer is A
No explanation has been provided for this answer.
Differences in characteristics observed between individuals of the same species is known as
trait
phenotype
mutation
variation
Correct answer is D
No explanation has been provided for this answer.