BIOLOGY HIGH SCHOOL

Marcus is taking a hiking trip in the mountains. He sees long scratches on the rock walls. The area was most likely eroded by a _____.

Answers

Answer 1
Answer:

The area was most likely eroded by a earthquake. Feel free to message me if you have any other questions.

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Which of the following biomolecules typically contains both nitrogen and phosphate? A- lipid
B- protein
C- Nucleic acid
D- carbohydrate

Answers

Biomolecules that typically contain both nitrogen and phosphate - C. Nucleic acids.

Nucleic acids are biomolecules made up of the monomers called nucleotides, Nucleic acids store, transmit, and expresshereditary information. There are two types of nucleic acids:DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

All the genetic information is coded in the sequences of nucleotides. Nucleotide has the following components:

  • Sugar (ribose or deoxyribose sugars) - pentose sugars are present in them.
  • Phosphate - with sugar, phosphate makes the backbone and framework of the nucleic acids.
  • nitrogen base - there are four nitrogen bases two purines;adenine and guanine and two pyrimidines;Thymine (uracil in RNA) and cytosine.

Thus, Biomolecules typically contain both nitrogen and phosphate - C. Nucleic acids.

Learn more about nitrogenous bases:

brainly.com/question/817276
 Nucleic acids as the nitrogen is part of the nitrogen base and the phosphorous is part of the phosphate group.

The two types of cell cycle genes that, if mutated, cause cancer cells to divide uncontrollably are called tumor suppressor genes andA. growth factors.
B. proto-oncogenes.
C. cancer genes.
D. telomeres.

Answers

Answer:

The correct answer is option B. "proto-oncogenes".

Explanation:

Tumor suppressor genes and proto-oncogenes are two types of genes that can cause the development of cancer cells if they suffer a mutation. The main difference between tumor suppressor genes and proto-oncogenes is the way they cause cancer. If tumor suppressor genes are inactivated they produce cancer cells, while if proto-oncogenes are activated is when they produce cancer cells.
Tumor suppressor genes and proto-oncogenes cause cancer cells to divide uncontrollably.

The answer is B) proto-oncogenes.

Water is most likely to be condensing when we observe which of the following atmospheric conditions?. A. a heavy rainstorm.
B. a very cloudy sky.
C. a clear sky.
D. a light snow.

Answers

Answer: B. a very cloudy sky

Condensation is a process in which the gaseous form of water is converted into liquid. It is very important for the water cycle. This results in the formation of the clouds, fog and dew. For the occurrence of condensation, the air must be saturated. Saturation occurs most commonly when the warm air in the atmosphere cools down to it's dew point. The condensed water vapors and some of the particular matter forms the clouds.

Answer: B

Condensation is a process via which a liquid directly converts to a gaseous state, skipping the liquid state altogether. Therefore, a very cloudy sky is an example of water being converted to gaseous state directly.

Which best describes a difference between transcription and DNA replication?A. DNA replication produces mRNA.
B. They use different nucleotide bases.
C. Transcription does not use DNA.
D. Only DNA replication happens in the nucleus.

Answers

Ans. (B). They use different nucleotide bases.

DNA replication involves synthesis of DNA molecules, while transcription is a process that involves synthesis of RNA molecules. In both processes, DNA acts as template and provides information for synthesis of new daughter DNA or RNA strand.

Process of replication and transcription differs from each other as each process uses different nucleotide bases. This is because, nucleotide bases in DNA include adenine, guanine, cytosine, and thymine, while in RNA uracil is present instead of thymine along with three similar bases.

Thus, the correct answer is option (B).

The answer is: [B]:  They use different nucleotide bases.
______________________________________________________
Specifically, DNA replication uses thymine; whereas transcription uses uracil.
_______________________________________________________

In a certain plant, yellow leaves are dominant (Y) and red leaves are recessive (y). A plant with genotype Yy and a plant with Yy are crossed. If they have four offspring, how many would you predict would have red leaves?

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1 plant. This is because offspring will only have red leaves if it receives yy, and there is a 25% chance of this, so 1/4 of the offspring will be predicted to have red leaves.

Sunlight can be considered a food resource.

Answers

I think this is partly true and partly false. It is partly true because plants undergo in a process called photosynthesis and it is sunlight that makes them do this. It is partly not true because literally the sunlight can't be considered a food source because it actually don't give you food.
This is incorrect. Sunlight is a form of energy that can be utilised, for example by plants, to produce a food source during the process of photosynthesis. In this example, photosynthesis uses sunlight, carbon dioxide and water to produce glucose (food).
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