The new mRNA formed is AUG CCC UAU AUG GUA GAG UGU AG
Explanation:
Frameshift mutation is a condition when either a nucleotide is added or deleted and the code is no longer triplet codon. This change causes the shifting of the frame of DNA sequence and the coding of amino acid is affected because mRNA is transcribed according to the mutated DNA sequence.The different amino acid than expected is the outcome.
In the given mRNA strand:
mRNA : AUG CCC CUA UAU GGU AGA GUG UAG
the condition given is if frame shift mutation takes place in 3rd nucleotide in second codon, the third C is lost, the resulting mRNA is:
new mRNA formed is AUG CCC UAU AUG GUA GAG UGU AG
The sequence of amino acid will change and also there will be a loss of amino acid in the polypeptide as only 2 nucleotides in the triplet codon is there.
Answer:
False
Explanation:
Regulation of the secretion of various hormones into the bloodstream is done by a mechanism known as negative feedback.
The term feedback is used to indicate the regulation of a gland by its own end product. Feedback is negative because increased end product inhibits gland activity.
An example of negative feedback is the control exerted by the pituitary gland over the thyroid gland. The pituitary produces a trophic hormone, thyrotropin, which stimulates the thyroid to release thyroxine and triiodothyronine hormones. When these hormones reach a certain concentration in the blood, they inhibit the production of thyrotropin by the pituitary gland.
When the rate of thyrotropin in the blood decreases, so do the rates of thyroxine and triiodothyronine in the blood. This undoes the inhibitory effect on the pituitary gland, which increases thyrotropin production and restarts the regulatory cycle.
Answer:
When the dominant allele does not cover up the recessive.
Explanation:
The mix and is considered incomplete.