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Alika [10]
4 years ago
12

Explain how genes are expressed for a particular reason

Biology
1 answer:
ozzi4 years ago
8 0

Each cell expresses, or turns on, only a fraction of its genes. The rest of the genes are repressed, or turned off.

The turned on genes are then first transcribed into messenger RNA by the process of Transcription.

Then the mRNA is Translated into protein by the process called Translation.

This is how the specific genes are expressed.

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Briefly explain how an antibiotic-resistance gene and the lacz gene can be used to determine which cells contain a particular pl
viktelen [127]

Bacteria that have taken up the plasmid with antibiotic resistance gene will grow in a medium laced with the particular antibiotic of interest. More so, the bacteria that take up plasmid with the lac Z gene, when grown in a medium of lactose only, will propagate. These experiments are used with selective media that only allows the bacteria with a particular characteristic to grow.   





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3 years ago
Genes are positioned on thread like bodies found in the nucleus of a cell. they are called
Yanka [14]
Chromatin
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5 0
3 years ago
In a murder trial, which person testifying to the jury is classified as an eyewitness?
vitfil [10]

Answer:

A person who claimed to see a car  of a certain make/model leaving the scene of a crime.

Explanation:

Key words to the answer:

"See"

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Eyewitnesses have a firsthand glimpse of events that occurred and they usually have to have seen something that has occurred to be considered a eyewitness, in this case the person who saw the Make/Model of the car that left the crime scene has some claims that can be used to find the criminal and also when the eye witness sees the car they can  tell which direction it went in to give a bit of a clue(although this depends in certain situations). The eye witness  can also be anyone who was anywhere near the crime scene when it happened or even a little bit after it happened.

7 0
3 years ago
Read 2 more answers
The sugar glider in Australia and the flying squirrel in North America are both small mammals with large expanses of loose skin
Flauer [41]

Answer:

Each have adapted in very similar ways to similar habitats.

Explanation:

According to Darwin, given a similar set of conditions, two different organisms can adapt in the same direction. Here, the sugar glider inhabits Australia and the flying squirrel inhabits North America. There is a huge distance between their locations and also they are two different species with no direct evolutionary relation. However, because of the similar conditions present in their habitats, they developed same traits over the time. Both of them live in forested areas so they developed loose skin between their limbs which allowed them to glide freely between the trees.

3 0
4 years ago
Which of the following is cycled through the environment through processes such as photosynthesis, respiration, and decay
Alik [6]
C- plants use photosynthesis which gives off oxygen and respiration gives off carbon dioxide
8 0
4 years ago
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