Answer: 20 amino acids
Explanation:
The Genetic code permits the triplet nature of codons whereby three nucleotides from Adenine, Uracil, Guanine and Cytosine on the messenger RNA (mRNA) join to form 64 codons.
Since more than one codon can specify for an amino acid, the 64 codons then specify for 20 amino acids, that then form the sequence of various proteins
<em>yes it is right because if we take example of viruses and germs .. new germs and viruses are much modified as compared to old ages because they adopted the ways they can escape from the immunity.. they have an adoption to transmit their DNA material ,also they can take protein coat of host because of which host's immunity cells cannot recognize germs as foriegn particle..and in this way germs and viruses remain for a long time in body due to the adoptations according to age and environment..</em>
B) The positive charge of the protons in the nucleus equals the negative charge in the electron cloud.
(I just took the test and it was right). :)
Answer:
trophic level
Explanation:
The energy pyramid indicates how energy is transferred from one organism to the next on the food chain. There are four main levels, starting at the base with producers that take energy from the sun, and moving upward to primary, secondary and tertiary consumers. The pyramid of numbers represent the number of organism in each trophic level.
Answer: Mendel's choice of garden peas for his studies
Explanation:
Mendel's chose garden peas for his plant breeding studies DUE to the easily distinguishable and discontinuous traits the plant possess.
This traits include:
- flower colour
- flower position
- seed colour
- seed shape
- pod colour
- pod shape
- plant height
He found each of these traits can be expressed as DOMINANT and RECESSIVE i.e they can be easily distinguished by everyone; so he chose garden peas for his plant breeding studies UNLIKE others who chose some other plants with less distinguishable traits
