Answer: Telomerase is the enzyme responsible for maintenance of the length of telomeres by addition of guanine-rich repetitive sequences. Telomerase activity is exhibited in gametes and stem and tumor cells.
Explanation:
Why may an asthmatic patient produce a wheezing sound and difficulty in breathing
Answer:
Wheezing happens when the airways are tightened, blocked, or inflamed, making a person's breathing sound like whistling or squeaking. Common causes include a cold, asthma, allergies, or more serious conditions, such as chronic obstructive pulmonary disease (COPD).
Explanation:
Which organism described below makes its own food?
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Convert the DNA strand to mRna, then use the codon chart to translate the codons into amino acids.
DNA → TAC CAT GGA ATT ACT
mRNA →
Amino acids →
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Answer:
DNA → TAC CAT GGA ATT ACT
mRNA: AUG GUA CCU UAA UGA
Amino acids: met-val-pro-stop
Explanation: