All categories

3 years ago

Indicate whether the following statements about DNA technology in medicine are true or false.

Biology

2 answers:

DochEvi [55]3 years ago

7 0

Answer: All statements are correct.

A. DNA technology is used to identify hereditary diseases - True

B. DNA technology is used to produce medicines and hormones - True

C. DNA technology is used to identify mutations - True

D. DNA technology is used to map human genes on chromosomes.

E. DNA technology is used to identify paternity - True

Explanation:

A. Hereditary diseases are passed from parents to offsprings via the transmission of defective genes to the next generation. In principle, these genetic errors are present in the somatic cells of the parent, which are replicated as it is during the DNA replication process. Therefore, the offsprings carry the same genetic error causing the same hereditary disease. With the help of (recombinant) DNA technology, which is a set of modern biotechnological tools, it has helped us identify those genes which are associated with that particular disease.

B. The (recombinant) DNA technology has helped us isolate specific genes that produce specific enzymes/hormones. After isolating them, we can incorporate these genes into the DNA of fast-growing model organisms such as bacteria. These bacteria multiply and produce millions of copies of these enzymes through gene expression (central dogma of life) and thus in a relatively short time, we can achieve our product that can be used for treatments of disease in diseased organisms. An example is the enzyme insulin, which is produced in humans by the INS gene. When humans are not able to produce insulin due to diabetes, we can provide insulin externally. This insulin is previously cultured/produced in E. coli bacteria in vitro having that INS gene obtained from healthy human being.

C. Mutations are the genetic errors in the DNA sequence that occurs during DNA replication. With the help of DNA technology, we can determine the sequence of a diseased organism and then we can compare it with a healthy organism. This helps us find out where the mutation occurred.

D. With the help of (recombinant) DNA technology, we can easily identify the position (locus) of each gene on the chromosome as well as the distance of two genes on a chromosome. This technology has been extensively used in the Human Genome Project in the past 2 decades. As of today, the Human Genome Project has been accomplished with in-depth details of genetic elements in human DNA.

E. Since DNA is a hereditary material, we can easily identify our paternity through DNA fingerprinting technologies such as whole genome sequencing and restriction fragment length polymorphism. Nowadays, this technology is being used for commercial purposes where one can know easily his/her paternity at low cost and relatively short time.

hichkok12 [17]3 years ago

7 0

Answer:

true, true, true, true, false

Explanation:

You might be interested in

What changes in fatty acid metabolism would result from a mutation in the muscle carnitine acyltransferase i in which the mutant

marysya [2.9K]

The metabolism of a fatty acid comprises catabolic procedures, which produce energy and anabolic procedures that generate biologically essential molecules. The fatty acids belong to a family of molecules categorized within the lipid macronutrient class. One function of fatty acids in animal metabolism is the production of energy in the form of ATP.

The correct answer of the question is option B, that is, fatty acid synthesis in the cytosol and oxidation of fatty acid in the mitochondria could take place simultaneously because due to mutation, malonyl-CoA would no longer prevent the admittance of fatty acid into the mitochondria and would undergo the process of beta-oxidation.

6 0

3 years ago

What microscope do you use to examine the internal structure of a nucleolus?

IrinaK [193]

Electron microscope.

An electron microscope has a larger zoom than a light microscope. Thus, an electron microscope will be able to see the internal structure of a nucleolus whereas a light microscope will not be able to.

8 0

3 years ago

Which sense can distinguish between five different types?

Mkey [24]

Answer:

Explanation:

It is the awareness of your body

7 0

4 years ago

Read 2 more answers

Which is not a function of the cell membrane?A:It forms a selective barrier by choosing what is good or bad for the cell.

ArbitrLikvidat [17]

The answer is C, the mitochondria is the powerhouse of the cell

6 0

3 years ago

Read 2 more answers

Which of the following normally occurs during mitosis?

denis23 [38]

Answer:

b. Replicated chromosomes line up on the equatorial plate.

Explanation:

Mitosis starts with the breakdown of the nuclear envelop and condensation of chromatids into visible chromosomes. Since DNA replication has occurred during the S-phase of interphase, each chromosome has two sister chromatids held together by a centromere. A chromosome with two sister chromatids is said to be a replicated chromosome.

Metaphase of mitosis includes the alignment of replicated chromosomes at the cell's equator. The process is assisted by the spindle apparatus. This is followed by splitting of centromere and separation of sister chromatids during anaphase.

7 0

3 years ago