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STatiana [176]
3 years ago
6

Which structure contains dna and regulates gene expression?

Biology
2 answers:
BigorU [14]3 years ago
7 0

Answer: the prokaryotic cell

Explanation:

maria [59]3 years ago
3 0

Answer:cell nucleus

Explanation:

The function of the cell nucleus is to control gene expression. It also mediates the replication of DNA during the cell cycle.

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A patient of normal weight asks the nurse for dietary guidelines for maintaining her weight. what does the nurse teach the patie
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CRISTAL MEASURED A BOX AND SAID IT WAS 18 CUBIC UNITS LONG. KYLE SAYS IT IS 48 CUBIC UNITS. HOW COULD THEY COME UP WITH DIFFEREN
Ede4ka [16]

Given:

Measure of box reported by Cristal = 18 cubic units

Measure of box reported by Kyle = 48 cubic units

To find: The reason behind the discrepancies in their reporting.

Answer:

The measurement has been done in 'cubic units'. This indicates that they are measuring the volume of the box. Now, the differences in their reporting can be due to the following reasons:

  1. Unit of measurement: Cristal might have reported in imperial units whereas Kyle must have used metric units. Example, an inch is greater than a centimeter.
  2. Instrument used for measurement: Either Cristal or Kyle are using a non-standardized instrument for recording measurements. The unit spacing between, say Kyle's instrument might be smaller than that of Cristal's. They need to check it against a standard ruler to standardize their rulers.
  3. Least count error: Instruments with a greater least count or bigger gradations are prone to errors than instruments with a smaller least count. Example, a ruler with a least count of 1 inch will not be able to record in decimal units whereas a ruler with a least count of 1 mm can make fine recording.
  4. Rigidity of box: If the box can shrink under different environmental conditions then there will inconsistencies in their recording. Cristal must have recorded its volume in cold temperature whereas Kyle must have recorded its volume in hot temperature. (<em>sounds odd but is true</em>)
7 0
4 years ago
The disease cystic fibrosis (CF) is caused by a mutation to the CFTR gene which affects the respiratory, endocrine, reproductive
Lady bird [3.3K]

Answer: DF508 mutation. A Genetic, Hereditary, Autosomal and Recessive Mutation.

Explanation:

Cystic fibrosis (CF) is a recessive autosomal lethal disease, it is most common on Caucasoid populations. Its diagnosis is suggested by the clinical features of chronic obstructive pulmonary disease, persistent pulmonary colonization (particularly with mucoid Pseudomonas strains), meconium ileus, pancreatic insufficiency with or familiarity history of the disease. The FC gene is large, with about 250 Kb of genomic DNA, 27 exons representing about 5% of genomic DNA; encodes a 6.5 kb transcribed mRNA. This mRNA is transcribed into a protein of 1480 amino acid called CFTR (Regulator Transmembrane Conductance Cystic Fibrosis). When a three-base pair deletion, adenosine-thymine-thymine (ATT) identified in the CFTR gene, exon 10, it results in the loss of a single amino acid phenylalanine at position 508 of the protein. This mutation is called DF508; “D” stands for deletion and “F” for phenylalanine amino acid.

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3 years ago
Sonja wants to find the difference in length between the world's longest
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Answer:

The answer would be C) range

Explanation:

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1 How would life on Earth change if water did not naturally exist in all three states
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Answer:

1. Life on earth would die out as water is essential to all living things

Explanation:

I learned this information from my Biology class.

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