Answer:
a. The alpha-carbon
Explanation:
An amino acid is an organic molecule that contains a carboxyl (COOH) and a amino (NH2) group. It has a central carbon called as alpha carbon.
The carboxyl and amino groups are attached to the the alpha carbon. Apart from them, a side chain denoted by "R" is also covalently attached to it. Side chain varies in each amino acid and it imparts the unique properties to the particular amino acid.
Answer:
no entiendo perdon.......................................
There are several precautions that should be taken during catastrophic weather. In the case of a hurricane warning two precautions you should take immediately are:
1. Fortifying your house: In doing this you give your home the utmost care and protection needed to give it the best chance to minimize damage.
2. Evacuate: This is more or less common sense. whenever there is a massive storm most evacuations are mandatory. Regardless whenever a storm is likely to hit your area it is best to pack up pets and all essentials and head for the safest area as quickly as possible. waiting till the last minute could get you stuck in traffic causing you to be caught in your car during the store which is more dangerous than remaining in your own house.
Answer
Crossing over is the phenomenon in which exchange of chromtids occur between non sister chromatids and result into recombinant chromatids, which is an important tool for evolution and bring about genetic changes in offsprings as compare to their parents.
No crossing over
If no crossing over occurs, it means no exchange of chromatids between non sister chromatids of homologous chromosomes, then no recombinant chromatids will be formed.
Result
At the end of meiosis II, when four haploid cells are formed, all these cell will contain similar chromosomes as present in parent. Thus chromosomes are non recombinant because of no crossing over.
Answer:
Evolution is the adaptations of organisms to their changing to there environments to better there lives. The Evolutionary processes depend on both changes in genetic variability and changes in allele over time.
