Which of the following base pair sequences could be present in
DNA?
A. AGTCAG
TCAGTC
B. GTACGC
TATGCG
C. AT AT AT
CGCGCG
D. TCTCG
TCTCG

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .

Based on their relative positions in the periodic table, which two elements would have the same number of valence electrons?