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3 years ago

What can you learn about by studying DNA?

Biology

2 answers:

Maurinko [17]3 years ago

6 0

Answer:

Explanation:

The study of human DNA and genetics can be intellectually fascinating, but it also has plenty of practical applications. From the use of DNA in court cases to the discovery of new therapies for genetic diseases, a thorough understanding of the human genome can have important medical, social and legal impacts.

galina1969 [7]3 years ago

4 0

Answer:

Studying human DNA and genetics can help scientists better understand where humans came from as a species. It can help elucidate the connections between different groups of people and give historians and anthropologists a clearer picture of historic human migration patterns.

Explanation:

hope it help brainliest pls

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Juvenile ____________________ arthritis is an autoimmune disorder that affects children with symptoms that include stiffness, pa

pickupchik [31]

Answer:

Juvenile rheumatoid arthritis

Explanation:

Arthritis is a term used to refer a group of diseases that affects the joints such as knees, wrists and fingers.

Juvenile rheumatoid Arthritis is an autoimmune disorder that affects children which means the body attacks itself by mistakenly identifying its own cells as foreign .

The cause of this response is not yet known.

Some of the symptoms of the disease include stiffness, pain, joint swelling, skin rush, fever, slowed growth and fatigue.

It has no cure but in some cases children seem to outgrow the disease.

7 0

3 years ago

Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mat

Marianna [84]

Answer:

Explanation:

This is a monohybrid cross between involving a gene coding for earlobe. The allele for free earlobe (F) is dominant over that of attached earlobe (f).

N.B: let F represent the gene involved.

A genotypic ratio is the ratio derived from the offsprings based on the actual genetic make-up and not based on their phenotypic appearance as in phenotypic ratio.

A homozygous individual is an individual having the same kind of alleles for a gene while a heterozygous individual is one that has two different alleles i.e. combination of the dominant and recessive allele.

The monohybrid cross is between an individual with attached earlobe (ff) i.e. homozygous recessive individual. (Note that, a recessive trait will only be expressed in a homozygous state) and a heterozygous free earlobeb individual (Ff). (See attached picture). Ff × ff

The resulting four offsprings will

be expected to have only two distinct genotypes i.e heterozygous (Ff) and homozygous recessive (ff) in an equal ratio i.e. 2:2 ~ 1:1

4 0

3 years ago

How is sodium chloride used in diagram b ? Where are you likely to find this resource ?

Semmy [17]

The top right picture/ the one with the coins pepper and salt shaker on the counter
Table salt is the resource going to be found
Table salt is sodium chloride

3 0

3 years ago

Nicotine is only one of the many toxic chemicals inhaled while smoking. What effect can such toxic chemicals have on the body?

svet-max [94.6K]

The effect of such toxic chemicals to the body is that they stimulate uncontrolled cell division. Uncontrolled cell division or cells proliferation may lead to cancer. The unchecked cell growth results to mutations in genes that can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death.

5 0

3 years ago

What feature of cells is best demonstrated in the image? Α. Cells are the basic units of structure and make up tissues. B. Cells

lisabon 2012 [21]

Answer:

c . All organisms have cells with different shapes and functions.

3 0

3 years ago