Answer:
Explanation:
When a substance has the capacity to disrupts the genetic compositions (DNA) of the organisms, to the extent that it makes the particular organism genetic materials prone to genetic mutation,( random changes in the genetic composition) such group of substances are called Mutagens.
ionizing radiation,radioactive decay are some examples of of physical mutagens, while biological mutagens examples include viruses and bacterial. Chemical mutagens are Benzene compounds,bromine,aromatic amines,sodium Azide.
They exerts their negative effects
by disrupting gene expression sequence of transcription, translation, or changed the nucleotides sequence of the DNA leading to deletion, addition, subtraction of genetic bases.Some may make chromosomes to be unstable, disrupting the structure
Although some mutagens can cause cancer, that is they are mutagens. not all mutagens carcinogenic.This is because the Mutagenic effects depends on the metabolites present in the cells of the organisms.
They have the same nuclear number (p.s. this is a chemistry question!) :)
Answer:
tropic hormones
Explanation:
Anterior pituitary is the anterior lobe of the pituitary gland (hypophysis). It is also called the adenohypophysis. The secretions of the adenohypophysis are involved in the contol of many biological fuunctions: growth, stress, reproduction etc. Two major groups of hormones from the adenohypophysis are:
- Tropic hormones-regulate the secretion of hormones from other endocrine organs (Thyroid-stimulating hormone-TSH, Adrenocorticotropic hormone ACTH, Luteinizing hormone LH, Follicle-stimulating hormone-FSH)
- Trophic hormones-regulate the growth (TSH-stimulates the growth of thyroid gland and ACTH which stimulates the growth of the adrenal cortex).
The answer is this: the RNA is only translated into a single long polypeptides, which is then cleaved into shorter ones.
The process that is non-functioning in the person with diabetes is negative feedback mechanism. The correct option is B.
<h3>What is negative feedback mechanism?</h3>
A self-regulating system is a negative feedback loop, also known as an inhibitory loop. Increased output from the system inhibits future production in a negative feedback loop.
When blood glucose levels are too low, the pancreas secretes the hormone glucagon. This travels to the liver in the blood and causes glycogen to be broken down into glucose.
When glucose enters the bloodstream, glucose levels return to normal. This is an illustration of negative feedback.
Thus, the correct option is B.
For more details regarding negative feedback mechanism, visit:
brainly.com/question/15574460
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