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Luda [366]
3 years ago
10

The effect that acid rain has no soil also ends up affecting aquatic life True or False

Biology
2 answers:
Shkiper50 [21]3 years ago
7 0
True have a good day 
svp [43]3 years ago
6 0

Answer:

The answer is true

Explanation:

We just went over it in my class!!!! Have a good day

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If you look at a star on a dark night (with no moon), the star seems to disappear when we look right at it. that is because the
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Dots and circles on them
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3 years ago
The members of these kingdoms all have cell walls. Which kingdoms are they?
bogdanovich [222]

Answer:

kingdom plantae

Explanation:

members of this kingdom have a cell wall that gives their cells a box like structure

5 0
3 years ago
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The scientists modified the genes that were turned on/off (expressed) in mice. What happened to the offspring of these mice?
daser333 [38]

The resulting mice will be induced with the changed gene either on or off. The offspring will have altered genes if both the alleles have the trait. This is a heritable change.

Explanation:

Making gene on or off is a process of gene regulation when one of the gene is methylated or histone modification to prevent access to transcription factors hence no expression of the protein. This process is called epigenetics.

The resulting progeny in mice will receive the allele of on or off the gene. Such genes with altered allele are also called as

The altered genes will be expressed in the resulting progeny of mice.

The epigenetic genes can be reverted with environmental effects in the offspring paramutable alleles. They are heritable.

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
When two species have a very
Nesterboy [21]

Answer:

i say competition

Explanation:

i say competition because they are the same so they might fight alot for resources

3 0
3 years ago
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