Which of the following is true? ...

Question

Which of the following is true?

(a) DNA is single-stranded and RNA is double-stranded.

(b) Chromosomes are tightly wound coiled DNA.

(c) The genome of an organism is packaged into bundles called its phenotype.

(d) The genome of an organism is packaged into bundles called proteins.

Answer 1

(B) is true! Chromosomes are indeed tightly packaged coils of DNA. The DNA coils on proteins called histones to make this happen.

Correction of false answers:

(A) DNA is a double traded molecule and RNA is a single stranded molecule (*RNA can be double stranded sometimes)

(C & D) The genome is packaged into chromosomes. A phenotype is the physical trait resulting form the expression of particular genes in the genome.

Answer 2

(A) DNA is double stranded while RNA is single stranded

(B) Chromosomes are wound around DNA.

(C and D) The genome of and organism is packed into Chromosomes Ans is B