Which of the following statements about the functional consequences of single base-pair mutations are TRUE? Select the three correct answers. A) Mutations that occur in the intron sequences cannot affect the protein coding sequence of a gene. B) Insertions or deletions of single base-pairs within a protein coding sequence probably change the amino acid sequence encoded by a gene. C) Nucleotide substitutions within a coding sequences always change the amino acid sequence encoded by a gene. D) Missense mutations always change the amino acid sequence encoded by a gene. E) Nucleotide substitutions outside of the coding sequence can affect the expression of a gene.

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Answer 1
Answer:

Answer:

these statements are true

B) Insertions or deletions of single base-pairs within a protein coding sequence probably change the amino acid sequence

D) Missense mutations always change the amino acid sequence encoded by a gene

E) Nucleotide substitutions outside of the coding sequence can affect the expression of a gene.

Explanation:

B) insertion or deletion of nucleotide in coding region of DNA can change the amino acid sequence encoded.

D) missense mutation means that the change in nucleotide sequence resulting in change in amino acid sequence encoded by gene.

E) A mutation may alter the promoter of a gene, thereby affecting the rate of transcription.

Answer 2
Answer:

Final answer:

The correct statements regarding single base pair mutations are: insertions or deletions within a protein coding sequence likely change the encoded amino acid sequence; missense mutations always change the encoded amino acid sequence; nucleotide substitutions outside of the coding sequence can impact gene expression.

Explanation:

Your question focuses on single base-pair mutations and their functional consequences. After considering the provided statements, the three correct answers are: B) Insertions or deletions of single base-pairs within a protein coding sequence probably change the amino acid sequence encoded by a gene. D) Missense mutations always change the amino acid sequence encoded by a gene. E) Nucleotide substitutions outside of the coding sequence can affect the expression of a gene.

A missense mutation is a type of mutation where a single base pair is changed, leading to the substitution of a different amino acid in the resulting protein. This change can alter the function of the protein. On the other hand, insertions or deletions of single base-pairs can often lead to a frameshift mutation, which alters the reading frame and potentially changes every subsequent amino acid in the encoded protein, often resulting in a nonfunctional protein. Lastly, nucleotide substitutions outside of the coding sequence can also affect gene expression by changing areas involved in the regulation of gene transcription.

Learn more about Single Base-Pair Mutations here:

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Use the template of a replication fork to draw arrows that represent both continuous and discontinuous DNA synthesis. Draw one long arrow to show continuous DNA synthesis and three arrows to show discontinuous DNA synthesis. The arrows should point in the direction of nucleotide addition, and the three arrows showing discontinuous synthesis should be numbered 1, 2, and 3, in the order of fragment synthesis.

Answers

Answer: seen below

Explanation:

Deoxyribonucleic acid (DNA) synthesis is the biological process by which DNA molecule is created. In the cell, each of the two strands of the DNA molecule acts as a template for the synthesis of a complementary strand. This strands are separated during replication (DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule). DNA polymerase synthesizes the new strands by adding nucleotides that complement each (template) strand.

Deoxyribonucleic acid (DNA) synthesis is continuous because extension of a single ribonucleic acid (RNA) primer occurs without interruption into the replication fork as it continues to open to the right as seen on the diagram below. On the upper lagging strand which is the discontinuous synthesis, here synthesis is discontinuous, since new RNA primers must be added as opening of the replication fork continues to expose new template.

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Answers

Answer:

yes we can add nutrition from healthy and nutritious foods .

hope it is helpful to you

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Answers

Answer:

d) Organic molecules make up most nonliving things.

Explanation:

Nonliving things are not organic so they would not have organic molecules.

A pharmaceutical company wanted to test a new drug developed to lessen the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom was suffering the effects of a cold. Twenty five of the people were given the drug, while the other 25 were given a placebo, a sugar pill. None of the participants knew who was taking which pill. All participants received a pill at 8:00 am daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The severity of the cold, hence the effectiveness of the pill, was determined by the number of tissues each person used within 24 hours. At the end of a seven day period, it was concluded that those with the sugar pill had their symptoms disappear as well as those who had taken the new wonder drug. The executive committee decided to produce the drug anyway thinking that the public would do anything to relieve the symptoms of a cold. Type of Variable Description Dependent Variable that the researchers actually measurers, counts or observes. It is what the researcher thinks will change in response to the experimental treatment. Independent Variable that is intentionally changed by the researcher. Standardized or Controlled These variables are held constant between each group to help prevent these factors from influencing the dependent variable. Table Source: CA Surmacz (2004) Inquiring Minds Want to know: Introducing Freshmen to Experimental Design. In Tested studies for laboratory teaching. MA O'Donnell, Ed. Vol 25 Mini Workshops. Assoc. Biology Laboratory Education pp. 316-327. 1) State the research question the study aimed to address
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6) What data was collected during the study?
7) What this data qualitative or quantitative?
8) What was the study's conclusion?

Answers

Answer:

1. Research question is a question which is the aim of any experiment or research, in this case, the question addressed by the study is -  Testing the effects of a newly developed drug to lessen the effects of the common cold.

2. Hypothesis is an explanation for the reason for any problem it does not need the evidence and completely based on logic.

The newly developed drug is able to lessen the symptoms of a common cold.

3. Independent variable is a variable manipulated or changed during the experiment:

Administration of drug or placebo (sugar pill)

4. Dependent variable is the response to the effect of the independent variable:

Number of tissues for each volunteer

5. Control group is available that remain constant throughout the study or used to compare the results:

Administration of sugar pill to 25 volunteers

6. Data is the result that the study generated -

At the end of the 7 days or one week period, symptoms of common cold disappear in both sets of volunteers who had taken either the drug or the placebo.

7. Data in this study is found is Qualitativedata as the drug is not administrated in doses.

8. Conclusion of the study is that the Placebo effect present as sugar pills relieve the common cold so This drug needs even more analysis.

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Answers

Answer:

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Answers

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