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PilotLPTM [1.2K]
3 years ago
7

Why is it necessary for the genetic material in a cell to exist in chromatin form during normal cellular activity, and not in ch

romosome form?
a)It requires more surface area in the cell to have the cells condense. b)Condensing into chromosome form requires more energy than the cell has to exert.
c) Chromatin prevents genetic material from being broken off during replication. d)Chromatin form allows the genetic code to be read and proteins to be made.
Biology
2 answers:
miskamm [114]3 years ago
6 0
D- During interphase, when the cell is not dividing, chromatin is less tightly packed compared to our chromosomes, which allows transcription to occur. 
allsm [11]3 years ago
5 0

Answer:

d) Chromatin form allows the genetic code to be read and proteins to be made.

Explanation:

Chromatin:

It is the structure of DNA along with histone proteins that are not in condensed form. This structure is further made up of Euchromatin which is loosely packed and Heterochromatin which is tightly packed. Chromatin especially Euchromatin allows the genetic code to be read by polymerase enzymes and proteins to be synthesized.

Chromosome:

It is a highly condensed structure of DNA and histone proteins which is seen during cell division. This structure of heredity material is adopted for the proper segregation of alleles during cell division.

Best choice:

d) Chromatin form allows the genetic code to be read and proteins to be made.

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A eukaryotic mutation upstream of a particular gene has been identified that changes the sequence of the TATA box to GATA. How w
Allushta [10]

Answer:

Transcription factor binding would be reduced or eliminated, and transcription of the gene would decrease dramatically.

Explanation:

Mutation means the changing of the structure of the gene that results in the variant form which may be transmitted to the subsequent generations.  They are caused by the altering the the single base units in the DNA of the species.

In both eukaryotic as well as prokaryotic, the mutation can affect the diversity in the future generation of the cells.

The eukaryotic mutation of the gene affects the transcription of the gene as the transcription factor binding will be lowered or will be eliminated and the transcription of this gene will decrease.

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What is a "start codon"? What is the nitrogen base sequence for the start codon?
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The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome.

Nitrogen base sequence for the start codon is AUG.
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In order for life to survive, bodies or cells must adjust to environmental conditions. This is called _____.
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The correct answer is, C. Homeostasis; Homeostasis maintains a stable condition of the body.
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Nitrogeneous bases
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5. The permease (transporter) allows glucose and Na into the cell requires ATP. True or False?
dem82 [27]

Answer: 5. False 6. False

Explanation: The permeases are membrane transport proteins, they're secondary active transporter that allow the movement of a specific molecule in or out of the cell in the direction of a concentration gradient, it is a form of facilitated diffusion and does not require energy. The permease secondary transporter uses the Na ion concentration to move glucose into the cell.

When the ion concentration gradient is set, the concentration of glucose in the cell is higher than the concentration of blood. Glucose will move to the blood by passive diffusion through permease secondary transporter.

The transport mechanism is carrier mediated it does not require energy.

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