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Lisa [10]
3 years ago
11

Which of the following molecules are not required to express a gene in eukaryotic cells?

Biology
1 answer:
slava [35]3 years ago
4 0

Answer:

Repressor protein

Explanation:

Repressor is a protein that binds to deoxyribonucleic acid(DNA) or ribonucleic acid(RNA) it inhibits the expression of one or more genes which is done by binding to the associated silencers.

A DNA binding repressor works by blocking the attachment of RNA polymerase an enzyme that enhance transcription to the promoter, thus preventing genes from been transcribed into messenger RNA.

An RNA binding repressor binds to the messenger RNA and prevents translation of the bases on the messenger RNA into protein. The blocking of expression is called repression.

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Which is an example of passive transport across a cell membrane? A)osmosis B)exocytosis C)endocytosis D)sodium-potassium pump
tia_tia [17]

An example of passive transport is osmosis. It is the only transport that doesn't require ATP to move something.

4 0
3 years ago
A musk ox and the Alstroemeria flower have physical structures and organs that have similar functions. Provide two examples of s
gladu [14]

Answer:

Mammals

Birds

Explanation:

The Organs which perform same function and looks but they are different in their structure from each other are called as analogous organs.

Organs are the structures that made up of two or more tissues organized to carry out a particular function.

An organ or bone that appears in different animals with same function is called homologous structure.

Homologous organs have similar origin n basic structure but perform different functions in different organisms. Analogous organs are different in basic structure but perform same functions.

Different animals have bones that appear very similar in form or function and seem to be related.

Examples

The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. They are different and have a different purpose, but they are similar sharing common traits.

The forelimbs of all mammals have the same basic bone structure.The structures are similar because they evolved to do the same job.  For example, the wings of bats and birds.

3 0
3 years ago
What are the different types of uncomformities
Elis [28]

Answer: disconformities

Explanation: disconformities are usually erosional contacts that are parallel to the bedding planes of the upper and lower units. I hope this helps

6 0
3 years ago
What process takes oxygen into cells
lbvjy [14]

Answer:

Cellular Respiration

Explanation:

In cellular respiration, animals take in O2 (oxygen) and exhale CO2 (carbon dioxide).

5 0
3 years ago
I’ll mark brainliest
yulyashka [42]

Answer:

Total energy increases.

Explanation:

You're welcome.

3 0
3 years ago
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