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jarptica [38.1K]
3 years ago
13

Genetic variability and mutation are at the heart of evolution. How do genetic mutations

Biology
1 answer:
Nataliya [291]3 years ago
4 0

Answer:

A mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation.

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The final pattern you wish to obtain expresses the UASG-GFP construct only in cell C2. How will you drive UASG-GFP expression sp
Nat2105 [25]

Answer:

Explanation:

Here, cell C-2 needs to express GFP and therefore, GAL4 should be functional in cell C-2. This can be achieved by expressing GAL4 in Regulatory DNA construct 3, and expressing GAL80, an inhibitor of GAL4 in Regulatory constructs 1 and 2. This arrangement expresses GAL4 in columns A and C, and inhibits GAL4 due to GAL80 expression in Columns A and B; and in rows 1 and 3.

Therefore, the only cell that expresses GAL4 is cell C-2.

The arrangement is:

1. Construct 1 should express GAL80

2. Construct 2 should express GAL80

3. Construct 3 should express GAL4

4. Construct 4 should not be used

7 0
3 years ago
Small proteins released from tissue cells infected with viruses, as well as from activated lymphocytes and macrophages, are call
LUCKY_DIMON [66]

Small proteins released from tissue cells infected with viruses, as well as from activated lymphocytes and macrophages, are called Interferons

<h3>What are Interferons ?</h3>

A collection of signalling proteins known as interferons are produced and released by host cells in response to the presence of certain viruses. Typically, a virus-infected cell will release interferons, boosting the antiviral defences of neighbouring cells.

  • They are released by infected cells, where they trigger the innate immune system's production of cytokines as well as natural killer cell activity and antigen presentation.

  • By establishing cytokine barriers, interferons shield uninfected cells from subsequent viral infections. Additionally, they prevent cellular division and control the organism's immune response.

Learn more about Interferons here:

brainly.com/question/26748113

#SPJ4

3 0
2 years ago
This is an uncontrolled fire which destroys forests, jungle, and vegetation as well as animal species that live in the area. The
Rama09 [41]

Answer:

Wildfire

Explanation:

The wildfires are one very devastating occurrence that can appear both naturally and be caused by humans. Naturally these fires occur because of high temperatures and drought, and because of thunders. When they occur, they spread out very quickly and it is an uncontrolled fire. It manages to burn down very large areas of grasslands or forests, moving very quickly and being extremely difficult to put it under control. While the wildfires are very destructive, there's also a positive from them, as they leave behind lot of ashes, and the ashes fertilize the soil, providing the basis for the growth of new vegetation.

7 0
4 years ago
True or False?<br><br> All objects emit electromagnetic waves.
Rudik [331]
I think it’s false I hope the answer was right and sorry if it was wrong
7 0
3 years ago
Fill in the table below by writing the complementary strand of DNA that would be formed by each template strand
BlackZzzverrR [31]

Answer:

DNA strand = complementary strand

GCAAG = CGTTC

TTACG = AATGC

GATAC = CTATG

CGGAT = GCCTA

DNA strand = mRNA strand

CGATT = GCUAA

GCTTA = CGAAU

GCATC = CGUAG

TTCAT = AAGUA

Explanation: A complementary strand is not the same in base composition and sequence with the template strand. In DNA, anywhere adenine is found in the template strand, thymine is found in the complementary strand and anywhere cytosine is found in the template strand, guanine is found in the complementary strand. But in RNA, anywhere adenine occurs in the DNA template strand, uracil occurs in the mRNA strand, wherever thymine occurs in the DNA template strand, adenine occurs in the mRNA strand and wherever guanine occurs in the DNA template strand, cytosine occurs in the mRNA strand.

Summarily, in DNA adenine pairs with thymine while cytosine pairs with guanine while in mRNA, adenine pairs with uracil, while cytosine pairs with guanine.

6 0
3 years ago
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