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seraphim [82]
3 years ago
5

A biologist wants to use a radioactive isotope of nitrogen to radiolabel certain molecules in a culture of cells she is growing.

If the biologist incubates her cells with N-15 ( a heavy isotope of nitrogen), which group of macromolecules will be labeled in the culture of cells? A) glucose B)glycogen C)lipids D) proteins
Biology
1 answer:
RideAnS [48]3 years ago
8 0

Answer:

D) proteins

Explanation:

The N-15 is one of the isotopes used in proteomics, in which the full set of proteins expressed by a genome are studied. The method is called Stable Isotope Labeling by/with Amino acids in Cell culture (SILAC) in which the labeled amino acids are used to estimate the protein levels. With this method, the diseases biomarkers can be identified and studied.

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the crust is made of rock and the mental is also made of rocks.if this is so then why the crust os floating on the mental​
mylen [45]

Answer:

Explanation:

This is bio not sst lol

Ok the ans is bcs crust is hot type stuff while a metal is a slippery thing so when a magma gets in to a slippery stuff fst it will float then it will smash the metal

7 0
3 years ago
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Different cell types and tissues express different sets of genes; for example, some genes are expressed primarily in the heart,
Kobotan [32]

Answer:

d.Different sets of genes.

Explanation:

A cell normally only expresses a percentage of its genes and various cell types are created by the expression of distinct gene sets. In addition, in response to changes in their environment, cells can alter the pattern of genes they express, such as signaling from neighboring cells.

5 0
3 years ago
Timothy has been diagonsed with schizophrania and has mostly auditpry hallucinations when he is experiencing such a hallucinatio
sdas [7]

Answer:

Auditory cortex

Explanation:

Auditory hallucinations correspond with spontaneous neural activity of the left temporal lobe, and the subsequent primary auditory cortex.

8 0
3 years ago
6. If a DNA sequence reads TCCA, a deletion mutation would look like...
Marina86 [1]
Answer: C

Explanation: It would be C because a deletion mutation involves the loss of genetic material, therefore C is the only option that fits the definition.

Hope this helps
4 0
3 years ago
Draw an X on the template in the space provided for your response to indicate the phase during which the replication of damaged
larisa [96]

Answer and Explanation:

Replicating DNA is delicate and can breakdown in the process of duplication. The source of DNA rearrangements is broken chromosomes. These chromosomes can alter the cell genetic program. These modifications can activate a growth advantage in a single cell in our body—tumor rise when that cell remains to divide. Cells have defense mechanisms to protect us from these harmful actions. In the eukaryotic cell cycle, chromosomes segregate during the M phase and duplicate during the S phase. The S phase is known as the phase of DNA synthesis, while the M phase is known as the mitosis phase. Any problem with DNA replication activates a checkpoint during the S phase. A checkpoint is a flow of signaling events that places the phase on hold till the issue is resolved—the checkpoint of the S phase work as a surveillance camera. The main purpose of the replication is to produce an identical double strand. Each strand in a DNA molecule functions as a template for a new DNA strand.

8 0
3 years ago
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