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Vinil7 [7]
3 years ago
11

State one reason why the ozone shield is important

Biology
1 answer:
Virty [35]3 years ago
8 0
It protects the Earth from becoming over heated, but with pollution, global warming has become more apparent because of the destruction of the ozone layer
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What is true for urochordates
Leno4ka [110]
Answer is B on pluto
5 0
3 years ago
Proteins that bind to cells and stimulate cell division are called
ANTONII [103]

Answer:

when G1/S cyclin-CDK is activated. Expression of G1/S cyclins is regulated by E2F proteins 

Explanation:

I've found this on Google

Commitment to cell division occurs at Start when G1/S cyclin-CDK is activated. Expression of G1/S cyclins is regulated by E2F proteins in conjunction with pRB proteins.. Mitogens stimulated cell division by increasing the amount of G1 cyclins.

3 0
3 years ago
Read 2 more answers
Mutations in DNA include deletions and insertions. These types of mutations:
pantera1 [17]

Answer:

(A). Result in different amino acids to be read due to frame shifts

Explanation:

Insertion or deletion mutations (or Indel mutations) can be defined as mutations in DNA due to insertion (addition) or deletion of nucleotide bases in DNA.  

These mutations lead to change in reading frames (sequence of codons), which leads to formation of protein having completely different amino acid sequence. Hence, these mutations are also cause frameshift mutations.

This is due due to triplet nature of genetic codes as insertion or deletion of one or more bases (but not three) would change change in codon sequence and mutated sequence can form a non-functional or truncated protein.

Thus, the correct answer is option (A).

6 0
2 years ago
suppose a dominant allele (N) codes for a big nose and a recessive allele (n) codes for a small nose. Imagine that an organism r
Zinaida [17]
Nn (heterozygous dominant)
8 0
3 years ago
Name the clear watery liquid that surrounds the brain and spinal cord and fills the four cavities or ventricles of the brain.
adelina 88 [10]

Answer:

<em><u>CERE</u></em><em><u>BROSPINAL </u></em><em><u>FLUID</u></em>

<em><u>(</u></em><em><u> </u></em><em><u>CSF)</u></em><em><u> </u></em>

Explanation:

  • the clear watery liquid that surrounds the brain and spinal cord and fills the four cavities or ventricles of the brain is known as CEREBROSPINAL FLUID

hope it's helpful

8 0
2 years ago
Read 2 more answers
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