Answer:
Adenine on one strand can pair only with thymine on the other strand; cytosine, only with guanine.
Explanation:
DNA nucleotides can contain one of four nitrogenous bases. These bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The two strands are held together through hydrogen bonds that form between the nitrogenous bases. Adenine (A) forms bonds with thymine (T) while cytosine (C) forms bonds with guanine (G); A only ever pairs with T, and C only ever pairs with G.
Answer: D
Explanation:
A) - Makes no sense, so no
B) - Experiments in laboratories must be controlled, so no.
C) - A laboratory is a regulated environment, so no.
D) - Only D makes sense, as it is true.
Answer:
False
Explanation:
Before the Corona Virus every 10 seconds someone was born, every 5 seconds some one would die. (Approximately)
Now with the Corona Virus we are dropping dead like flies!