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denis-greek [22]
2 years ago
15

In dna sequencing, how does the addition of dideoxynucleoside triphosphates (ddntps) terminate the synthesis of new dna? \

Biology
1 answer:
son4ous [18]2 years ago
4 0

ddNTPs have a hydrogen at 3' position which terminates synthesis of DNA.

ddNTPs is the abbreviated form for dideoxynucleotides triphosphates. They are known as chain elongating inhibitors. The Sanger method is a sequencing technique that is used to increase the number of DNA copies. The DNA synthesis requires magnesium ions, a single-stranded DNA template, oligonucleotide primer, and nucleotide precursors like dATP, dGTP, dTTP, and dCTP. Also, DNA polymerase is required which is an essential component for DNA synthesis.

The Sanger sequencing method is a significant process evident by its use in Human Genome Project which helped scientists in sequencing the human genome. The small sequenced fragments are joined together to form large regions subsequently forming chromosomes.

Learn more about DNA sequencing -

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If a man weighs 190 lb and eats 150 g protein per day, his protein intake is _____ of the recommended dietary allowance (rda)
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The RDA for protein is 0.8 g per kilogram of body weight. This man's weight is 190 lb, or 86 kg; 86 kg × 0.8 = 69.1 g protein per day. Thus, an intake of 150 g is more than twice his RDA of 69.1 g of protein per day.

Recommended Dietary Allowance (RDA) of protein for adults is 0.8 g per kilogram of body weight. To determine your RDA for protein, multiply your weight in pounds by 0.36.The protein RDA for adults is 0.8 grams per kilogram of healthy body weight per day.

Proteins build muscle mass and contour, facilitate hair, nails and bone growth, regulate energy levels, and support chemical processes within the body which include enzyme, hormone and antibody production.

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6 0
2 years ago
Why pancreas is called both exocrine and endocrine gland?​
PolarNik [594]

Answer:

This question is in my stored notes read below

Explanation:

Pancreas is an exocrine gland as it has a duct to store pancreatic juice secreted by the pancreas and use it whenever required. It is considered as a endocrine gland as it does not have a duct to store the hormones insulin and glucagon which are directly supplied to the blood stream.

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3 years ago
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