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Sonbull [250]
3 years ago
11

When a child is born with trisomy, when did the mutation occur

Biology
2 answers:
Amanda [17]3 years ago
7 0

Answer:during meiosis

Explanation:

k0ka [10]3 years ago
3 0
<span>during meiosis is when the mutation occurs.</span>
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Can an enzyme be recycled? Explain.
ser-zykov [4K]

Answer:

Enzymes serve as catalysts to many biological processes, and so they are not used up in reactions and they may be recovered and reused. However, in a laboratory setting, reactions involving enzymes can leave the enzyme unrecoverable. This process makes the enzyme at once less reactive but more stable.

5 0
3 years ago
At the official announcement of completion of the draft human genome (choose all that apply)
In-s [12.5K]

Answer:

  • (B) Two alternative strategies were used to complete the genome - top down and bottom up
  • (C) The public project used a mapping strategy to limit the total sequencing required
  • (D) The Celera group, led by Craig Venter, used a shot gun sequencing strategy

Explanation:

  • As the project was unable to sequence all the DNA that was found in the human cells, the first draft was <u>made in June and complete in the end referred to as a working draft and made on the basis of the final sequencing and mapping of the human genome. </u>
  • The <u>draft included the alternative strategies for the completion of the bottom up and top up of the genome code and has a mapping strategy</u> that limited the total sequencing needs.
7 0
3 years ago
Staphylococcus aureus is grown in heart-infusion broth at 37°C. If you start exponential phase with 100 cells, and after 90 minu
Nikolay [14]

Answer:

30 minutes

Explanation:

Bacteria reproduce by binary fission, a process by which one parent cell divides to form 2 progeny cells. Because one cell produces 2 progeny cells, bacteria are said to undergo exponential ( logarithmic) growth.

As in the case of staphylococcus aureus, we start with 100 cells ,  and after 90 minutes number becomes 800 that means  , firstly the cells doubled (100 x 2 = 200 ) after 30 minutes. Again after 30 minutes they doubled ( 200 x 2 =400 ) and again after 30 minutes they doubled (400 x 2 = 800). So in 90 minutes 100 cells became 800 cells.

Hence the generation time for S.aureus is 30 minutes.

8 0
3 years ago
Certain photosynthetic members of the Kingdom Protista have developed a specialized structure to help them detect light. What is
kumpel [21]
Chloroplasts help them detect light. Chloroplasts are also contained in plants.
7 0
3 years ago
How are iconic and covalent bonds alike? How are they different?
Rzqust [24]
Different: in covalent bonds, atoms share electrons, whereas in ionic bonds atoms transfer electrons.

Alike: Both ionic and covalent bonding lead to the creation of stable molecules.
8 0
1 year ago
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