molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
The answer is option (3).
Amino acids are joined together to form proteins.
Living organisms have enzymes which are capable of linking amino acids together by creating a peptide bond between the amino acids. This process takes place in the A and P site of ribosomes in the cell during translation.
One such enzyme is called peptidyl transferase. If an organism lacks such an enzyme, synthesis of the proteins catalyzed by that particular enzyme in its cells will not take place. If amino acids cannot be joined together, then a polypeptide chain, which forms the primary structure of the protein will not be formed.
Ok well carries food and oxygen to different cells in the body, carries body waste away, protects the body from illness, and the bodys defense system
Answer:
A
Explanation:
Homeostasis is the maintaining of internal conditions. Answer A is correct because it is maintaining internal conditions which is the blood temperature.
Answer and Explanation:
Crossing over occurs during meiosis. When homologous chromosomes are aligned and they stick together by the chiasma point. At this point, the homologous chromosomes chains break and get recombined with the broken portion of its homologous. The result is that one of the progenitor´s chromosome will have a portion of the other progenitor´s chromosome, and vice-versa.
If crossing-over does not occur, the independent assortment of the homologous chromosomes in a cell will produce two different genotypes that equals the ones of the progenitors. So, there will be two genotypes, one of them equals the female´s genotype and the other is like the male´s genotype.