BIOLOGY HIGH SCHOOL

During transcription, enzymes bind to a molecule of DNA.Then, the enzymes unwind and separate the DNA's double helical strands. As the molecule unwinds, complementary nucleotides pair with one of the DNA strands to form

Answers

Answer 1
Answer: Answer - Mainly RNA Molecule

Reason - Reason is it needs an information is important to the development and synthesis of protein.
Answer 2
Answer: Its RNA molecule lol

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As set of overlapping DNA fragments that form a contiguous stretch of DNA is called aA) chromosome. B) sequence. C) map. D) contig.
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Which substance is an example of organic matter?A. Carbon dioxide B. Oxygen C. Sugar D. Salt
Populations of organisms have many genetic variations. Where do these come from?

6. Which of the following correctly identifies DNA and RNA?A.
ribogenome
B.
riboamino acid
deoxygenome
deoxyamino acid
deoxyribonucleotide
deoxyribonucleic acid
C.
riboamino acid
D.
ribonucleic acid

Answers

Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA)

Answer:

Explanation:

riboamino acid

Suppose that while the reverse osmosis system is running tank B becomes contaminated with salt water such that it ends up with a higher salt concentration than tank A. What would happen if the reverse osmosis system was turned off?A) There would be a net flow of water from tank A to tank B.B) There would be a net flow of water from tank B to tank A.C) Water would flow in equal amounts in both directions.

Answers

Answer:

The correct answer is: A) There would be a net flow of water from tank A to tank B.

Explanation:

  • Osmosis can be defined as the process by which molecules of a substance (water) tend to move from a region where its concentration is high to a region where is concentration is low across a semi-permeable membrane.
  • The force which causes this movement is called the Osmotic Pressure.
  • Reverse Osmosis can be defined as the process by which molecules of a substance (water) move from a region where its concentration is low to a region where its concentration is high, due to the application of a hydrostatic pressure which is more than the osmotic pressure.
  • In the given example, water is is being separated from the salt dissolved in it by the process of Reverse Osmosis.
  • This results in the accumulation of salt in Tank B and accumulation of pure water in Tank A. Reverse osmosis promotes the movement of water from Tank B (where the water concentration is low but salt concentration is high) to Tank A (where the water concentration is high but salt concentration is low) due to the hydrostatic pressure.
  • Stopping Reverse Osmosis will cause normal Osmosis to occur.
  • Hence, the water will move from tank A (where its concentration is high) to tank B (where its concentration is low) until water concentration in both the tanks become equal.

Cells can contain thousands of different genes; however there is often only a small percentage of these genes that are being expressed at any given time. this indicates that - a. cells are unable to express all genesb. gene expression is regulatedc: the expression of genes is randomd unused genes are removed from the dna

Answers

Answer:

b. gene expression is regulated

Explanation:

Several mechanisms exist in the cell which regulate the turning on or turning off of certain genes.

These mechanisms are collectively referred to as gene regulation. The regulation can occur in several ways, including;

  • Structural and chemical changes to genetic materials in the cell.
  • Regulation of  transcription process.
  • Regulation of mRNA translation or protein synthesis

The correct option is b.
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Which best describes the author’s viewpoint toward the actual Rosetta Stone in "The Rosetta Stone”?It is a fascinating artifact that can help people better understand the past.
It is a historical artifact that scholars spent too much time trying to understand.
It is something that is interesting to learn about, but it is not historically significant.
It is a piece of 5 that has an exciting and entertaining story.

Answers

The right option is; It is a fascinating artifact that can help people better understand the past.

Rosetta Stone is an ancient Egyptian stone discovered by a Frenchman called Bouchard in August 1799. The stone has inscriptions written in two languages (Egyptian and Greek) and in three writing systems (hieroglyphics, demotic script and the Greek alphabet). The inscriptions on the stone were written by a group of priests in Egypt to honour the Egyptian pharaoh. The inscription contains all the good things that the Egyptian pharaoh did for the priests and the people during his reign.


Answer: A

Explanation:

Max discovered a beaker full of transparent liquid in the science lab. He hypothesized that since the liquid is transparent like water, it is water. He shared this conclusion with his friends. His friends questioned his conclusion, but Max had no evidence to back his thoughts. What step did Max miss in his scientific methods?

Answers

experiment i would think

Which genotype belongs to an offspring that homozygous recessive for both traits

Answers

An individual who is homozygous recessive for two traits will have a genetoype with the general formula.
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