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3 years ago

All nucleotides of DNA and RNA contain a

Biology

2 answers:

KatRina [158]3 years ago

8 0

The answer is D I believe

Allisa [31]3 years ago

3 0

Answer:

Phosphate group

Explanation:

Each nucleotide consists of a heterocyclic base linked via a five-carbon sugar (deoxyribose or ribose) to a phosphate group. DNA and RNA each contain four different bases. The purines adenine (A) and guanine (G) and the pyrimidine cytosine (C) are present in both DNA and RNA. So both DNA and RNA have four nitrogenous bases each—three of which they share (Cytosine, Adenine, and Guanine) and one that differs between the two (RNA has Uracil while DNA has Thymine). One of the most significant similarities between DNA and RNA is that they both have a phosphate backbone to which the bases attach.

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Tim will need to take several hormone replacements because he no longer has a functioning pituitary gland. Which hormones should

Talja [164]

Answer:

Pituitary hormone replacement therapy

Explanation:

Hypopituitarism is a condition in which the pituitary gland is not producing one or more of its hormones or is producing them at lower than normal levels. Generally, these hormones stimulate other endocrine glands to produce their hormones. For example, if the pituitary gland doesn't make the thyroid-stimulating hormone (TSH), the thyroid gland doesn't work correctly.

The pituitary gland, which is located at the base of the brain, controls the production of hormones in all endocrine glands. In pituitary hormone replacement therapy, a patient takes hormones to replace the hormones not being produced by the pituitary gland. Such hormones include adrenocorticotropic hormone (ACTH), thyroid stimulating hormone (TSH), anti-diuretic hormone (ADH), sex hormones, prolactin, and growth hormone.

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3 years ago

In which kingdoms are all organisms multicellular?

AleksandrR [38]

Multicellular organisms are reffered to as eukaryotes while unicellular organisms are reffered to as prokaryotes. Among the kingdoms, kingdom animalia and plantae are kingdoms in which microorganisms are considered as eukaryotes.

5 0

2 years ago

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An established 47 year-old patient presents to the provider's office after falling last night in her apartment when she slipped

Bezzdna [24]

Does anyone know the answer

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3 years ago

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In the Meselson-Stahl experiment, which mode of replication was eliminated based on data derived after one generation of replica

Otrada [13]

Answer: conservative model

Explanation: DNA isolated after one generation produced a single band which was a higher and intermediate in density between the heavy and light Nitrogen isotopic DNA used, showing that the first generation was a hybrid DNA. This observation fit with the dispersive and semi-conservative models only. And so at this generation, the conservative model was discarded.

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3 years ago

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The bacteria have an initial concentration of 1000 cells/cm3 . Each cell divides once every 30 minutes. Calculate how long it wi

Levart [38]

It will take <u>120 minutes</u> for the concentration to become > 15000 cells/cm³

<u>Given data:</u>

Initial concentration ( density ) = 1000 cells / cm³

Target/final concentration = > 15,000 cells /cm³

<h3 /><h3>Calculating the concentration every 30 minutes </h3><h3 />

<em>note</em><em> : Given that each cell divides every 30 minutes </em>

<u>After the first 30 minutes </u>

Concentration = 2000 cells / cm³

<u>After 60 minutes </u>

concentration = 4000 cells / cm³

<u>After 90 minutes </u>

concentration = 8000 cells / cm³

<u>After 120 minutes </u>

concentration = 16000 cells / cm³

Therefore after 120 minutes the concentration of the cells will be greater than 15000 cells/cm³ ( i.e. 16000 cells/cm³ )

Learn more about concentration : brainly.com/question/17206790

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2 years ago