Answer: B) R group
Explanation: An aminoacid is composed by an amino group, an acid or carbonyl group and a side chain or R group, all bonded to a central carbon atom. Aminoacids are different between them for the R group and can be classified as: 1) Non-polar Neutral if the side chain is uncharged and non-polar (aliphatic or cyclic). 2) Polar Neutral if the side chain contains amida, sulfur or hydroxyl groups. 3) Basic if the side chain contains other amino groups. 4) Acid if the side chain contains other carboxyl groups.
Answer:
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17%
Explanation:
Demand. With less than 5% of the world's population, the U.S. consumes almost 17% of the world's energy and accounts for 15% of world GDP.
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Answer:
2. Gene
3. DNA
1. Pre-mRNA
4. mRNA
Explanation:
Transcription is the first step of gene expression in which a DNA molecule serves as template for the synthesis of mRNA. In the process of transcription, a Gene present on the DNA molecule is transcribed by RNA polymerase using complementary base pairing rule.
After the gene is transcribed, a pre-mRNA is formed. This mRNA is so called because it is immature. The pre-mRNA undergoes processing such as polyadenylation, splicing etc. to become a mRNA.
Hence, based on this, the order is:
Gene → DNA → pre-mRNA → mRNA
In a generic ant colony a single nest contains a few male drones for female fertilisation, one queen who lays the eggs and sterile female workers responsible for brood care, foraging, nest defence and fighting1. All workers in the colony maintain strict borders and are highly aggressive towards any non-nestmate alien intruders. This cooperation that is shown between nestmates is simple, efficient and masterful.
