1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fiasKO [112]
4 years ago
8

If a foreign gene is cloned into an expression host, it is important that the host itself A) not produce the protein being studi

ed. B) produce the protein in larger amounts than the vector. C) repress the genetic expression being studied. D) produce signal proteins to tag the host protein.
Biology
1 answer:
Georgia [21]4 years ago
8 0

Answer:

Answer is A. not produce the protein being studied.

Explanation:

The process of generating, creating or replicating a copy of a cell or an organism, which is genetically identical , is called cloning.

There are three types of cloning, these are

1. gene cloning... which is the process of replicating copies of genes.

2. reproductive cloning is the process of generating copies of whole organism.

3. therapeutic cloning... this process is always used when the aim is at creating or generating tissues in replacing diseased or injured tissue by producing embryonic stem cells for experiment.

You might be interested in
Some molecules found in foods are known to be capable of driving DNA methylation or DNA demethylation. For example, folic acid (
Rufina [12.5K]

Answer: Eating excessive quantities of such molecules could deregulate this process, increasing methylation and repressing the expression of genes that should normally be expressed.

Explanation:

DNA methylation is one of the epigenetic mechanisms involved in the regulation of gene expression, because it is a process by which methyl groups are added to DNA.

Methylation then modifies the function of DNA when it is found in the promoter gene, it is essential for normal development and is associated with a number of key processes, including genomic imprinting, inactivation of the X chromosome, repression of repeating elements, aging, and carcinogenesis. Usually, <u>it acts to suppress gene transcription.</u>

For example, folic acid is essential for the rapid cell division that occurs during early fetal development and it also plays an important role in methylation and thus in gene regulation. <u>The metabolism of these vitamins is aimed at achieving adequate levels of  DNA methylation, necessary for the cellular processes</u>. Eating excessive quantities of such molecules could deregulate this process, <u>increasing methylation and repressing the expression of genes that should normally be expressed</u>.

3 0
3 years ago
1. Why must DNA have thymine instead of Uracil? 2. Why is it necessary for RNA to have uracil instead of thymine?
Zigmanuir [339]
Thymine has a methyl group and is better suited for the storage property of the DNA molecule as it is far more stable compared to Uracil.
RNA contain Uracil instead of thymine so as to make differentiation of RNA molecule from DNA molecules easier.
7 0
3 years ago
Why are protists like animals?
AfilCa [17]

Answer:

A protozoa is animal-like

Explanation:

They share some traits of animals, they eat things outside of themselves.

4 0
3 years ago
Question 6 (1 mark)
Andrej [43]

Answer:

option A

Explanation:

Energy gotten from the prey will be transferred up to the food chain.

so directly or indirect, all other members of the food depend on this energy

8 0
4 years ago
If a scientist collects evidence that questions the basics of a scientific theory, this means the theory is
timurjin [86]
B. going to be refined by further investigation
thats the answer because you need proof that the theroy is wrong
8 0
3 years ago
Other questions:
  • what tends to increase genetic variation in a population A bottlenecks B disruptive selection C mutation D selective pressures ​
    10·2 answers
  • What would happen of the cell membrane were not selectively permeable
    15·1 answer
  • A plate glass window (n = 1.5) has a thickness of 4.5 mm. how long does it take light to pass perpendicularly through the plate?
    15·1 answer
  • Why is blood pressure used as a measure of cardiovascular<br> health?
    7·1 answer
  • Hdhdhdjdhshshdbdhdjdjdjdjdjdjd
    14·1 answer
  • Which protist would most likely be phytoplankton?
    14·1 answer
  • The nebular hypothesis suggests that our solar system evolved from a huge _____.
    6·1 answer
  • A group of scientists determines that a mitochondrial DNA sequence shared by two species has a constant mutation rate. The seque
    8·2 answers
  • Salt marshes along the coast serve as a nursery site for juvenile fish including those that are important to the fishing industr
    9·1 answer
  • In which regions of the digestive system is amylase produced?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!