BIOLOGY HIGH SCHOOL

Which of the following happens first?A)Introns are edited out of the premature DNA.
B)RNA ploymerase reaches a terminator region.
C)Nucleotides are covalently linked together.
D) RNA polymerase binds to a promoter region of DNA.

Answers

Answer 1
Answer:   In transcription, the enzyme that makes the RNA transcript must bind to the promoter region of the DNA before it starts making an RNA transcript. RNA nucleotides will be covalently linked together as the RNA transcript is made. The RNA transcript (also known as pre-mRNA) will be completed when the RNA polymerase reaches the terminator region. After the RNA transcript is released from the RNA polymerase, it will undergo several steps of processing, one of which involves the removal of introns

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Both the arctic fox and snowshoe rabbit have made species adaptations over time that enable them to survive. For example, both creatures have fur that turns white in winter and fur on the pads of their feet. These are examples of adaptations to

Answers

The answer is seasonal changes.

Animals that live in taiga biomes had to adapt to seasonal changes, by changing their fur or feather color. For example, snowshoe rabbit and arctic fox live in taiga and their fur color changes with environmental conditions. To effectively camouflage, their fur is white during the winter. That helps them blend into the snow. In the summer, where there is no snow, their fur is brown and similar to the soil color. This way they evade predators because it is more difficult for their predators to spot them.

Answer:

A) Climate

The arctic fox and snowshoe rabbit have made species adaptations over time that help them to survive. For example, both creatures have fur that turns white in winter. They also have fur on the pads of their feet. These are both examples of their adaptations to Climate

Which of the following help decrease heart disease and lower cholesterol?unsaturated fats
saturated fats
calories
trans fatty acids

Answers

Low-saturated fats - can reduce the risk of developing heart disease and lower cholesterol
Saturated fats - increase blood cholesterol and heart attack rates
Trans fats - increase blood cholesterol and heart attack rates

A low-saturated fat, high-fibre diet can reduce the risk of developing heart disease and lower cholesterol.

Answer:

A

Explanation:

Unsaturated Fats

(Just took the quiz, this is correct)...entered B saturated fats which was wrong

Monomers linked together to form a polymer could be described as beads in a multicolored necklace. Which one of the following statements about monomers is true with respect to the above analogy?

Answers

I think you forgot to give the choices along with this question. I am answering the question based on my research and knowledge and hope that the answer comes to your help. The statement about monomers that can be considered as true with respect to the above analogy is that monomers in a polymer are of different types. 

Out of the following given choices;

A. Monomers in a polymer could be linked in various ways.

B. Monomers in a polymer are of different types

C. Monomers in a polymer look different but are structurally similar.


The answer is A.  The multicolored necklace analogy means that the polymer is composed of different types of monomers.  They, therefore, could also be linked in various ways. An example of this type of polymer is synthetic  nylon and polyethylene, or phospholipids and oils in biology. If the monomers making the polymer are of one kind, then the best necklace analogy would be that it is composed of the same colored beads.


A sentence using hydrotropism

Answers

Answer:

Hydrotropism causes cells to grow longer on one side of the roots.

Explanation:
"This plant displayed positive hydrotropism"

Which protein serves as a chemical messenger?hemoglobin
actin
myosin
insulin

Answers

D.) Insulin serves as a Chemical messenger.

Answer:

Insulin

Explanation:

Group of organelles that is common to both plant cells and animal cells.

Answers

-Cell membrane
-Cytoplasm
-Rough ER
-Smooth ER
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That's all I can think of
However, if you check out "cells alive" website. There are interactive diagrams of cells that contain organelles
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