In the structure of DNA, which of the following statements is true?
The double helix are held together by covalent bonds
Nucleotide is made up of ribose, phosphate and an organic nitrogen compound
Guanine is the opposite of cytosine
Adenine is the opposite of cytosine
Correct answer is C
No explanation has been provided for this answer.
75% red and 25% white
50% red and 50% white
100% white
100% red
Correct answer is A
No explanation has been provided for this answer.
Which of the following diseases is transmittable through genes?
HIV /AIDS
Sickle cell anaemia
Diabetes
Presbyopia
Correct answer is B
No explanation has been provided for this answer.
The classes of fingerprints in man are
whorl, alternate, opposite and compound
compound, loop, whorl! and alternate
whorl, arch, compound and loop
arch, simple, compound and opposite
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements is true about the ABO blood group system?
Antigens are located on the surface of white blood cells
Antibodies are located in the blood plasma
Antibodies are located on the surface of red blood cells
Antigens are located in the blood plasma
Correct answer is B
No explanation has been provided for this answer.