Afragment of a strand of nucleic acid isolated from a silk moth species contains the base sequence cagact. the strand must be from a) dna. b) rna. c) a protein. d) an amino acid.

The correct answer is "A. DNA". Nucleotides are the parts or links that constitute nucleic acids and DNA is a nucleic acid that stands for Deoxyribonucleic Acid. It does not matter if the sample studied is from a silk moth or other species; the DNA strand can only be represented by the letters A, C, G, and T. In this case, the DNA sequence is represented by CAGACT.

A) DNA

Explanation:

T is not a nitrogen base in RNA it would be substituted for U

the discoverers and explorers: 1. natives showed jedediah smith the way. 2. william sublette was the first cross it with a caravan. 3.joel walker and his family were the frist settlers to use it. the jumping off point: 1. founded in 1827 near where the missouri river flows into the mississippi. 2. by the 1840's, it was the most popular "jumping off" point for pioneers to stock their wagons with supplies. 3. missionaries from the church of jesus christ of latter day saints attempted to make independence their zion, or holy capital. the route west: 1. the first emigrants to oregon came by ship before the trail was established. 2. ships continued to to travel to oregon even after the overland migrations began, but they were not popular among the pioneers. 3. the fare for a sea journey to oregon was quite expensive--few pioneer families could afford it. i don't know the other three i'm sorry.

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i do knot know this