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
diamong [38]
3 years ago
14

Which statement about DNA is false? It can be used to identify an individual person. It is found in nearly all the cells of all

living things. It can be found in human saliva, hair, and blood. Plants have DNA in three places: the nucleus, chloroplasts, and mitochondria. Humans lack DNA in their brain cells.
Biology
1 answer:
ozzi3 years ago
7 0

Answer:

Humans lack DNA in their brain cells.

Explanation:

You might be interested in
Which of the following elements is known as "nuclear ash" when it forms inside a star?
vovangra [49]

Answer:

D- Iron

~+lil more info!+~

Iron is the ultimate nuclear “ash,” from which no nuclear energy can be extracted.

8 0
2 years ago
The population in South Africa is more prone to sickle cell anemia (genotype "ss"). People with genotype "ss" survive only up to
lions [1.4K]
The answer is stabilizing selection.

<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>

Stabilizing selection favors heterozygotes Ss,  disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.

7 0
3 years ago
A glucose molecule is completely broken down to carbon dioxide and water in glycolysis and the citric acid cycle. True or False
lutik1710 [3]

Answer:

True

Explanation:

A glucose molecule enters glycolysis in the cytoplasm of the cell. The glycolytic reactions break down one molecule of glucose into two molecules of pyruvate. Each of the pyruvate molecules is then decarboxylated and is oxidized into acetyl CoA. Acetyl CoA enters Kreb's cycle. Acetyl CoA is completely broken down into CO2 and H2O in Kreb's cycle. In this way, glycolysis and Kreb's cycle break down the glucose molecule into CO2 and H2O in a stepwise manner.

3 0
3 years ago
How does the cell membrane in the diagram above help to maintain the health of this cell?
Morgarella [4.7K]

The<em> cell membrane</em> controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.

3 0
3 years ago
What is the composition of hair?
Katyanochek1 [597]

Answer:

The hair is made up of 95% keratin, a fibrous, helicoidal protein (shaped like a helix) that forms part of the skin and all its appendages (body hair, nails, etc.). Keratin is synthesized by keratinocytes and is insoluble in water, thus ensuring impermeability and protection for the hair.

Explanation:

4 0
3 years ago
Other questions:
  • What are the products of photosynthesis?
    14·1 answer
  • "Plants are able to continue to grow and develop once the starch supply in the seed is gone, because they
    12·2 answers
  • Which type of limiting factor affects a large population more than it affects a small population?
    14·2 answers
  • The table below provides the number of chromosomes found in the body cells of various types of organisms.
    8·2 answers
  • Rhodobacter cells perform photosynthesis in the presence of light and grow heterotrophically in the dark. After being cultured i
    15·1 answer
  • Describe how water temperature affects the ability of ocean water to dissolve gases
    8·1 answer
  • Which of these can be used to see<br> how climate has changed over time?
    9·1 answer
  • PLEASE HELP I NEED TO GET THIS WORKSHEET DONE IN TIME IM HOME SICK AND NEED HELP PLEASE
    9·1 answer
  • In order to perceive forms and patterns from incoming stimuli, individuals utilize____.
    7·2 answers
  • the importance of glaciers as a force of erosion. Include how glaciers Form, where they form, how they change land, and the land
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!