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2 years ago

What is one possible message that one cell might send to another cell

2 answers:

4 0

<span>that really just depends on what type of cells we are talking about here. :) Bacterial cells can send a huge array of signals, like in pathogenic bacteria at the time of colonization, they send out signals to neighboring cells in the form of chemical substances to produce virulence factors like toxins. In short, gene regulation changes are brought about. This is just one example and is one of the effects of a process called Quorum Sensing. </span>

kifflom [539]2 years ago

3 0

Cells can sense and respond to electromagnetic signals, such as light, and to mechanical signals, such as touch. However, cells most often communicate with each other using chemical signals.

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A gel electrophoresis migration pattern displaying polymerase chain reaction (PCR) products shows four strong bands. The lengths

dangina [55]

Answer:

D) The encoded protein contains four repeats of a specific sequence.

Explanation:

The polymerase chain reaction is a technique used to replicate or amplify the amount of DNA sample.

The technique employs running the DNA samples on the gel through which the DNA samples run based on their sizes.

The large-sized DNA fragment runs to a less distance whereas the small-sized DNA run to a large distance.

In the given question, four sizes of DNA bands are formed in the ratio of 1:2:3:4 which shows that the proteins encoded by this DNA have four repeats of a specific sequence of the template strand. This was confirmed when the largest band sample was again used as a sample of PCR and the PCR resulted in the four bands in similar 1:2:3:4.

Thus, Option-D is the correct answer.

3 0

2 years ago

which is an example of a natural disaster limiting population growth? A month of heavy rainfall fills up watering holes, and a z

Marizza181 [45]

It would have to be the third answer, "a strong thunderstorm destroys many of the nests of a bird population."

6 0

2 years ago

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Students investigated samples of amylase from 100 goats. 100 small filter paper discs were each soaked in a different sample of

Korolek [52]

This question is not complete

Complete Question:

Students investigated samples of amylase from 100 goats. 100 small filter paper discs were each soaked in a different sample of goat amylase. The students tested the activity of these amlyase samples using plain paper. Plain paper contains starch.

A circle of plain paper was placed into a Petri dish ad shown in the diagram below. Iodine solution was used to stain the starch in the plain paper.

When iodine solution reacts with the starch in the plain paper, what colour would you see?

Answer:

The colour that would be seen is blue black .

Explanation:

Amylase is an enzyme that is involved in the breaking down or hydrolyses of starch.

When Amylase reacts with iodine, it speeds up the rate of reaction of the hydrolysis of the starch present in the plain paper.

The colour that would be observed is a blue black colour and the starch in the paper would be broken down further more into simpler sugars.

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2 years ago

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The inherited factors that determine traits are called

Marina CMI [18]

The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent

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2 years ago

Mendel's principle of segregation implies that the two members of an allelic pair of genes _____.

guapka [62]

two members of an allelic pair of genes separate during gamete

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2 years ago

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