Question

Contrast the sizes of the chromosomes of bacteriophage λ and T2 with that of E. coli.

Bacteriophage λ has a chromosome with a size of about ____ kb. T2 phage also has a ____ kb. E. coli has a chromosome of about ____kb.

(A) 50
(B) 100
(C) 4200
(D) 1000
(E) 4.2
(F) 200

Answer 1

Bacteriophage λ has a chromosome size of 50 kb, T2 phage has a chromosome size of 200 kb, and E.coli has a chromosome size of 4.6 million base pairs.

Step-by-step explanation:

The size of the chromosomes differ between bacteriophage λ, T2, and E.coli. Bacteriophage λ has a chromosome size of about 50 kb, T2 phage has a chromosome size of about 200 kb, and E.coli has a chromosome size of about 4.6 million base pairs, which is approximately 1.1 mm when cut and stretched out.