Genes are the biochemical units making up chromosomes. The human traits are being influence by genes acting together. Inherited genes do contribute to individual differences in temperament which is the answer. It refers to the individual differences in behavior biologically yet independent in regard to learning, attitude and values.
I think its option b, may carry out nitrogen fixation.
The answer is <span>c. A pea is a dicot, so the radicle grows and gives rise to a main root and it's branches.
During germination, the first organ to grow in the seedling is a radicle. In dicots, the radicle grows and gives rise to the main root and its branches. Those ultimate branches are spread throughout very large and deep area in the soil and anchor the plant. In monocots, the radicle grows and gives rise to the main root only. New roots, in monocots, are so-called seminal roots that grow from the base of the radicle. Since the pea is dicot, its radicle gives rise to the main root and branches.</span>
Answer:
- Pesticide 1: Induces transition mutations. Rat liver enzymes convert it into a nonmutagenic product. Does not induce frameshift mutations.
- Pesticide 2: Does not induce transition mutations. Rat liver enzymes convert it into frameshift mutagen.
- Pesticide 3: Induces transition mutations. Rat liver enzymes don't have ability to convert compounds into mutagens. Does not induce frameshift mutations.
Explanation:
The Ames test is a technique widely used to evaluate the mutagenic potential of a particular chemical compound. The Ames test uses <em>Salmonella typhimurium</em> strains with a defective mutation that makes them unable to synthesize histidine. When the mutation is reversed, then the revertant strains can grow on a medium lacking histidine. A positive test shows that the chemical is mutagenic because its activity is associated with the reversed mutation and thereby the mutant gene regains its function. In humans, as well as in other mammals, many chemicals don't have mutagenic effects themselves but they may become converted into mutagens when are metabolized by the body. For that reason, rat liver enzymes are added to replicate the metabolic effects of the chemical compound being tested. Nowadays, current tests can express recombinant human proteins instead of rat liver enzymes, thereby enabling a better correlation between mutagenic activity and human metabolic processes.
Answer:
Living organism contains both the organic and inorganic molecules in their body. Inorganic molecules are present as trace elements in their body and plays an important role in growth and metabolism of the organism.
Iodine is an important trace element of the body. One should include ionized salt in its diet as iodine acts as a precursor of thyroxine hormone. The deficiency of iodine in the body can cause a disease known as goiter. Iodine plays an important role in the growth and metabolism of an individual.