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Gnesinka [82]
2 years ago
6

Sonia is riding with her mom in the car and notices an

Biology
2 answers:
uysha [10]2 years ago
6 0

Answer:

She is observing an example of secondary succession because the baseball field had some soil and some plant and animal life when it was abandoned.

Marizza181 [45]2 years ago
4 0

Answer:

She is observing an example of secondary succession

Explanation:

because the baseball field had some soil and some plant and animal life when it was abandoned.

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2 years ago
A scientist who studies the interactions that determine the distribution and abundance of organisms in the organisms' ecosystem,
Anton [14]
<span>The scientific study of the distribution and abundance of organisms and the interactions that determine distribution and abundance. This definition encompasses not only the plants and animals that Haeckel recognized but microscopic organisms such as Bacteria, Archaea and protozoa, as well.</span>
4 0
2 years ago
A fly has two alleles for the color of its eyes. The green allele is recessive, and is represented by q. The blue allele is domi
murzikaleks [220]

Answer:

p = 0.34

Explanation:

The green allele is recessive, meaning two copies of q (qq) are required to be green. Conversely, animals that are either pp or pq will be blue.

If 44 organisms are green, that means 44 are qq.

For genotype frequencies, the equation is:

homozygous dominant genotype + heterozygous + homozygous recessive = 100%

Which is denoted as

p² + 2pq + q² = 1

We know that q² = 44/100 = 0.44

To work out q, we can do \sqrt{0.44} = 0.66

For allele frequencies, the total must add up to 100%, so

p + q =1

We know that q= 0.66

So p = 0.34, because 0.66 + 0.34 = 1

7 0
2 years ago
Which statement describes the semiconservative model of DNA replication correctly? It proposes that the two nucleotide strands u
arsen [322]

Answer: It proposes that the entire double‑stranded DNA molecule serves as a template for a whole new molecule of DNA.

Explanation:

In semi-conservative DNA replication:

- a parent double-stranded DNA splits in two.

- Each strand serves as template, and then read by the enzyme, DNA polymerase, to ensure accurate synthesis of a new daughter strand for both

- the newly synthesized strand contains nucleotides that are complimentary to free nucleotides present in the parent strand.

Thus, because the parent double strand is retained in the newly synthesized DNA, this model is described as semi-conservative

5 0
2 years ago
Read 2 more answers
1. You are studying an integral membrane protein of the plasma membrane. It has a single transmembrane domain and the N-terminal
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Answer:

A 22 to 25 amino acid sequence present in the central section of the protein, which gives rise to an alpha helix in the membrane is known as the stop-transfer anchor sequence. The sequence plays an essential function in targeting the protein towards the plasma membrane. On the other hand, it also ceases targeting of the protein towards the endoplasmic reticulum, which was started by the signal peptide.  

Thus, the process of translation of the remaining of the protein occurs within the cytosol due to the tethering of the transmembrane domain. In the stop-transfer anchor sequence, the hydrophobic amino acids present are isoleucine and valine. After mutation, these amino acids get converted into arginine and lysine, thus, hydrophilic amino acids replace hydrophobic amino acids in the sequence.  

Due to this, the transmembrane domain cannot be targeted towards an integral part of the plasma membrane by the short transfer anchor sequence, and therefore, now the translocation of the protein will take place towards the endoplasmic reticulum as initiated by the signal peptide at the beginning.  

3 0
2 years ago
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