The creation of DNA fragments with ends that can join with other DNA is achieved by the use of restrictive enzyme analysis.
<h3>What are restriction enzymes?</h3>
They are enzymes utilized in genetic engineering or gene recombination technology to cut DNA at some specific points in other to have sticky ends.
The sticky ends DNAs are able to join with other DNAs using these ends. Another enzyme (Ligase) is utilized to join the DNA back once the desired DNA has been inculcated.
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Answer:
The codon length would not change.
Explanation:
Codons have 3 bases and normally the DNA has 4, each codon counts for a single amino acid. There are 64 possible codon variations which can be calculated by .
If there were 6 bases in the DNA than there would be codon variation that correspond to the same 20 amino acids but the codon lengths would still be the same.
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Based on the chart provided:
- Deficiency of vitamin A causes Night blindness
- Deficiency of vitamin C causes scurvy.
- Cereal Z is recommended for the children because of its high vitamin D content.
- 2 servings of cereal Y is required.
<h3>What are vitamins?</h3>
Vitamins are organic food substances required by man man and other animals only in small amounts for normal growth and healthy development.
The main vitamins are vitamins A , B, C, D, E and K.
Deficiency of vitamin A causes Night blindness
Deficiency of vitamin C causes scurvy.
Vitamin D is required for strong bones and teeth.
Cereal Z is recommended for the children because of its high vitamin D content.
From the chart, cereal Y contains 4 mg of vitamin B.
Since, the recommended daily allowance of vitamin B is 8 mg
Cereal Y contains 4 mg of vitamin B.
8/4 servings of cereal Y is required.
Therefore, 2 servings of cereal Y is required.
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Answer: That energy reaches Earth mainly in the form of visible, infrared, and ultraviolet light; most of that energy passes through the atmosphere to warm the surface. The Earth absorbs this energy from the Sun and reemits it in the form of invisible infrared light. This energy is trapped by the greenhouse effect.
Explanation: