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DanielleElmas [232]
3 years ago
14

Besides helping to discover the structure of DNA, describe two other contributions Rosalind Franklin made to the world of scienc

e.​
Biology
1 answer:
Rainbow [258]3 years ago
4 0

Answer: Rosalind Franklin discovered the density of DNA and, more importantly, established that the molecule existed in a helical conformation. Her work to make clearer X-ray patterns of DNA molecules laid the foundation for James Watson and Francis Crick's suggestion that DNA is a double-helix polymer in 1953.

Explanation:

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For an organism to be considered to have the greatest level of fitness
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b

Explanation:

it must survive to reproduce

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How the DNA is different from the cDNA?
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Answer:

gDNA = "genomic DNA" and cDNA = "complementary DNA." cDNA is classically associated with being reverse transcribed either from all extracted RNA from a tissue or cell (total RNA) including (in eukaryotes) pre-mRNA, ribosomal RNA, tRNA, snoRNA, miRNA and mRNA, etc.) while cDNA obtained only from reverse transcription of the mRNA (expressed eukaryotic cytosolic mRNA) fraction (e.g., by poly[dT]n and random priming) is complementary DNA (cDNA) made from what is called the "transcriptome." Eukaryotes have introns and exons in the gDNA, while prokaryotes do not. So eukaryotic cDNA reverse transcribed from mRNA lacks introns. Prokaryotic-derived cDNA is always complementary to prokaryotic RNA and gDNA (so is always necessary to have a good DNase treatment prior to gene expression analysis by e.g., qPCR for prokaryotic transcriptome work)...

6 0
3 years ago
Which of the following describes the process of glycolysis? See Concept 9.2 (Page 170) View Available Hint(s) Which of the follo
Paul [167]

Answer:

It represents the first stage in the chemical oxidation of glucose by a cell.

Explanation:

Glycolysis is the first stage of oxidation of glucose by the process of cellular respiration. Glycolysis includes the breakdown of one molecule of glucose into two molecules of pyruvate. Substrate level phosphorylation forms net 2 ATP molecules and the redox reactions of glycolysis uses NAD+ as an electron acceptor resulting in the formation of 2 NADH.

Therefore, one molecule of glucose obtains 2 pyruvate molecules, 2ATP and 2 NADH by glycolysis. The fate of pyruvate depends on the availability of oxygen. Citric acid cycle and oxidative phosphorylation are the next two stages of aerobic cellular respiration.

8 0
3 years ago
A student inoculates a gelatin tube and places it at 37C for the week. When he comes back he takes the tube out of the incubator
ycow [4]
<h2>Gelatin </h2>

Explanation:

Gelatin is a differential medium which tests the ability of an organism to produce an exoenzyme, called gelatinase (this enzyme hydrolyzes gelatin)

When gelatin is at a temperature below 32°C (or within a few degrees thereof), it is a semisolid material and at temperatures above 32°C, it is a viscous liquid

When gelatin is broken down, it can no longer solidify and if an organism can break down gelatin, the areas where the organism has grown will remain liquid even if the gelatin is refrigerated

No the conclusion by student is not right because the tube must be runny after incubation followed by refrigeration to be considered gelatinase positive

3 0
3 years ago
DNA double helix does not have which of the following?
Rina8888 [55]

Answer:

Uracil

Explanation:

  • Uracil is only found in RNA
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4 0
3 years ago
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