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Ganezh [65]
3 years ago
11

name three things that show evidence of evolution. write one sentence for each, explaining why it demonstrates evidence.

Biology
1 answer:
12345 [234]3 years ago
8 0

The answers are;

  1. Fossils; present-day species have been shown to be closely related to some extinct species from the past as shown by fossils.
  2. Molecular biology; biochemical analysis of biomolecules such as DNA and proteins show that species are related to one another and share a common ancestor.
  3. Anatomy; Certain anatomical structures between species have shown convergent or divergent homology indicating sharing a common ancestry.

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Suppose that you could designan RNA polymerase that would transcibe
lozanna [386]

Answer:

No it would not be useful for cell.

Explanation:

RNA polymerase uses only one strand of DNA which is called the template strand for the synthesis of mRNA. The other strand which is not used to make mRNA is called the coding strand.

If an RNA polymerase is designed which transcribe both the strand than two different strands of mRNA will be generated that will have different nucleotide sequences and will code for different proteins. So one strands will generate a protein which have different amino acids sequence that will complicate the overall process for the cell.

Another problem is if two RNA strands are formed then they can form a double helix and the ribosome might not be able to bind on them and translation might stop. Therefore it would not be useful for cell.

4 0
3 years ago
What provides instructions to a eukaryotic cell about living and growing?
Damm [24]
The answer to this is DNA. 
3 0
3 years ago
Adenylate cyclases (ACs) are the membrane-bound glycoproteins that convert ATP to cAMP and pyrophosphate.
sasho [114]

Adenylate cyclases (ACs) are the membrane-bound glycoproteins that convert ATP to cAMP and pyrophosphate.

When activated by G-protein Gs, adenylate cyclases (ACs), which are membrane-bound glycoproteins, catalyze the synthesis of cAMP from ATP.

Different AC isoforms are widely expressed in various tissues that participate in regulatory systems in response to particular stimuli.

Humans have 9 different AC isoforms, with AC5 and AC6 thought to be particularly important for cardiac activities.

Nitric oxide has an impact on the activity of AC6, hence the protein's nitrosylation may control how it works. However, little is known about the structural variables that affect nitrosylation in ACs and how they relate to G's.

We predict the cysteines that are prone to nitrosylation using this 3D model, and we use virtual ligand screening to find potential new AC6 ligands.

According to our model, the AC-Gs interface's Cys174 in G's and Cys1004 in AC6 (subunit C2) are two potential residues that could experience reversible nitrosylation.

Learn more about glycoproteins here brainly.com/question/9507947

#SPJ4

8 0
1 year ago
A cross of a white hen with a black rooster produces erminette-color offspring. Which contains both black and white colors. This
iren [92.7K]

Answer:

codominance

Explanation:

Codominance is a result of cross-breeding different color animals that have the exact same DNA.

8 0
3 years ago
Sperm cells and egg cells are____
saw5 [17]

Answer:

haploid and contain 23 chromosomes

Explanation:

The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.

8 0
3 years ago
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