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valentina_108 [34]
3 years ago
9

5.

Biology
1 answer:
artcher [175]3 years ago
7 0
A) Rest and motion are relative terms
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Which of these are the two major sources of nitrate pollution in rivers? the burning of fossil fuels by factories and cars anima
snow_tiger [21]

Answer:

Animal Waste and Fertilizers

Explanation:

Animals, like humans, obtain nitrogen from consuming foods. The foods that the animals consume get digested and with time, the animals release the extra undigested foods and nutrients in forms of urine and feces. Like wise, fertilizers are typically made with animal waste.

6 0
3 years ago
The plant on the left is the parent plant. the plant on the right is the parent's offspring. the offspring is genetically identi
Aloiza [94]
The parent plant produced asexually because offspring from asexual reproduction are genetically identical to the parent.
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3 years ago
What are inputs and outputs of a cell cycle ?
lianna [129]

Answer:

The inputs can be material, such as the silicon used in the computer chips in a phone, or energy, which is used, for example, to manufacture and operate a phone. Outputs can be usable products or wastes, which must be disposed or recycled. A life cycle analysis of a cell phone also includes an analysis of its individual parts.

Explanation:

Hope  this helps!!!

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6 0
3 years ago
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two martians, betty and ben want to have a child. they both have one eye but are hoping to have a three eyed baby. is this possi
Dovator [93]

Answer:Yes

Explanation:

Only if someone down their bloodline has had 3 eyes. It would be possible, but highly unlikely.

6 0
3 years ago
Please help its due in a hour!!!!!
garri49 [273]

Answer:

1. The difference between the normal hemoglobin protein DNA sequence and the sickle cell hemoglobin DNA sequence is a base to base shift, in this case adenine (GAG) to thymine (GTG).

2. The difference affects the amino acid sequence of the protein by replacing glutamic acid (Glu) with valine (Val).

Explanation:

In sickle cell anemia, a change in the DNA nucleotide sequence is observed, where adenine is substituted by thymine, whose expression is the change in the amino acid sequence of globine β, incorporating valine instead of glutamic acid. This represents a molecular mutation - point mutation - by subtitution, which corresponds to missense mutation.

<u>Normal hemoglobin protein in a RBC</u>

DNA                 CTG ACT CCT GAG GAG AAG TCT

Amino acids     Leu  Thr   Pro   Glu   Glu   Lys   Ser

<u>Sickle cell hemoglobin protein in a RBC</u>

DNA                 CTG ACT CCT <em>GTG</em> GAG AAG TCT

Amino acids     Leu  Thr   Pro   <em>Val</em>   Glu   Lys   Ser

When GAG is transcribed to mRNA, the CUC codon is obtained, which codes for glutamic acid. Thymine substitution causes the DNA sequence to change to GTG, which is transcribed as CAC, the codon that encodes the amino acid valine. The <u>change from glutamic acid to valine in β-globin causes an altered hemoglobin, giving the abnormal erythrocytes observed in sickle cell disease</u>.

6 0
3 years ago
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