The correct answers are
a. vaginal ring and
c. oral contraceptives.The vaginal ring is a soft, plastic ring that releases a continuous dose of the hormones oestrogen and progestogen into the bloodstream and prevents pregnancy. Oral contraceptives are also drugs for preventing pregnacy and also contain combinations of the hormones estrogen and progestin )or progestin alone=. Estrogen and progestin inhibit the release of the hormones luteinizing hormone (LH) and follicle stimulating hormone (FSH) which have a role in the ovulation.
<span>Which of the following is a structure in some plants that produces male sex cells?
Answer: antheridium
</span><span>What is a life cycle that alternates between sexual and asexual reproduction called?
Answer: alternation of generations</span>
Attached is the mentioned above table. I found the exercise on the internet.
The correct answer is:
"<span>the information shown is accurate."
When birds breath in, their posterior air sacs inflate with air from the outside, and their anterior air sacs inflate with air from the lungs. When they breath out the air that was then in the posterior air sacs is now pushed to the lungs, and the air that was in the anterior air sacs is expelled through the trachea.</span>
The given question is incomplete as the option are not provided however, the correct options are as follows:
Defective proteins are often degraded quickly, making their effects temporary.
Single amino acid substitutions caused by errors in mRNA transcription would not affect protein function.
Unlike DNA mutations, mRNA transcripts have short half-lives and are not inherited across many generations.
Degradation of defective proteins activates mRNA repair pathways RNA polymerases synthesize many transcripts per gene, so only a small fraction of RNA transcripts would have errors.
ch mRNA molecule is only translated once and then degraded
Answer:
The correct answer is - statements 1, 3, and 4.
Explanation:
DNA polymerase is the enzyme that is responsible for the production of the new DNA molecule and any mutation in this enzyme that will inhibit the DNA repair process which affects future generations.
RNA polymerase is an enzyme that is responsible for the transcription of DNA to mRNA and any error-prone mRNAs have chances of degradation. Error in DNA replication is from generation to generation as it is inherited
The process of transcription is quick.
