Answer:
100 000
Explanation:
The average length of a base pair (bp) is 340 pm [340 × 10^(-12) m]
Length of DNA = No. of bp × length of bp
34 × 10^-6 m = n × 340 × 10^-12 m
n = (34 × 10^-6)/(340 × 10^-12) = 100 000
The DNA molecule contains 100 000 base pairs.
Answer:
B.carries and allows expression of a foreign gene of interest.
Explanation:
Plasmids are the low molecular weight extrachromosomal DNA molecules that are able to replicate themselves independent of chromosomal DNA due to the presence of "ori" (origin of replication).
Plasmids serve as vectors in recombinant DNA technology as some of their genes can be replaced with the gene of interest to create recombinant plasmids.
The restriction enzymes that create the sticky ends and DNA ligases facilitate the insertion of the foreign gene into the plasmids.
The host cells are made competent to take up the recombinant plasmids. Once inside the host cell, the recombinant plasmids replicate themselves and express the gene of interest that they carry.
C. Are vascular is the answer
Answer:
precession
Explanation:
The orbit isn’t the simple ellipse, rather it is one that moves a little, loop after loop. This motion is called precession, and you may have heard about it when astronomers talk about the precession of the orbit of Mercury