what is dna ? and what is the purpose of dna

Answers

Answer 1

Answer:

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.

Explanation:

-Eijiro <3

Answer 2

First, it has to be able to make copies of itself because you're making new cells all the time and your cells have to have a copy of your DNA so it has to do what we call replication.

It also has to store all the information about your body as far as your body chemistry, your proteins, your amino acids, and all the things that make you.

One more very important job of DNA is that it's responsible for this process called protein synthesis which is the process in which cells make proteins. So every piece of your body from your fingernails, your eyeballs, and many other things are made up of proteins, proteins are the building blocks of you and the DNA determines the shape and function of your proteins. You think of DNA as a set of instructions on how to make the proteins that make you.    


Related Questions

Help me with this please

Answers

Answer:

1. b

2. a

3. a

4. b

5. b

6. a

7. a or b (they're the same)

(Punnett square and chart attached)

Explanation:

1. The father is a non-roller, as was given in the question. Remember that a phenotype is the physical trait displayed by an organism.

2. In order for the father to be a non-roller, the recessive non-roller allele would have to be expressed. In order for this to happen, he would need two recessive alleles.

3. The gene for tongue rolling is dominant, so if the mother is heterozygous (she has one dominant allele and one recessive allele), then she will be a tongue roller.

4. The mother has a dominant allele and a recessive allele.

5. 50% of the offspring have the Rr genotype and 50% have the rr genotype. This means that there is a 50% of having a tongue-rolling child and a 50% chance of having a non-rolling child.

6. Because the possibility of the offspring having either genotype is 50/50, the ratio would be written as 1:1. Both outcomes are equally likely.

7. Because the possibility of the offspring having either phenotype is 50/50, the ratio would be written as 1:1. Both outcomes are equally likely.

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Build the hierarchy of Federal Courts below:

Answers

Answer:

Supreme Court (top)

Courts of Appeal (middle)

District Courts (bottom)

Explanation:

Which of the following best describes a mutation?

a change in a gene

a section of a chromosome that codes for a trait

anything that can damage a gene

a distinguishing quality that can be passed from one generation to another

Answers

a mutation is a change in a gene

The structure labeled A in figure 10-3 is called the?

also can someone help with 16 PLEASE !! ​

Answers

I’m pretty sure that the 15: is centromere
And 16: telomere

"Totipotency lasts for only a few days before the cells' fates are set as being the precursors to a specific lineage of cells." What does this sentence mean? Restate in your own words.

Answers

Pre-embryonic cleavages make use of the abundant cytoplasm of the conceptus as the cells rapidly divide without changing the total volume.

1. A longer depletion-time estimate assumes no recycling or reuse and no increase in reserves.
a. True
b. False

Answers

This should be b. False
The answer is false

A child has a mass of 30 Kg on earth. If the gravity on the Moon is one sixth that of the earth what is the mass of the child moon

Answers

Answer:

30 kilograms

Explanation:

A change in gravity does not affect mass.

Some seeds are endosed in a sweet, fleshy fruit. How would damage to the vascular tissue (Xylem and pholem, affect the developing fruit? A.Damaged vascular tissue would cause the developing fruit to accel in growth.
B . It would not affect the developing frut but it would affect the flower.
C. Damaged vascular tissue could cause the fruit to not completely develop or even develop at all.
D.The xylem and pholem are not parts of a plant and therefore would not affect anything.​

Answers

Answer:

C. Damaged vascular tissue could cause the fruit to not completely develop or even develop at all.

Explanation:

If the vascular tissues such as xylem and phloem are damaged, the fruit does not completely develop because the food that is produced in the leaves does not reach to the seed. The xylem helps in the transportation of water from the soil that is necessary for making of food during the process of photosynthesis so damaged xylem will not produced food and no food will be transported from leaves to seeds and if some food is produced by the leaves the phloem does not transport it to the seeds.

what are the two types of ATP production available in our muscles?

Answers

Answer:Muscle cells are able to produce ATP with oxygen, which is called aerobic respiration, or without oxygen, an anaerobic process called anaerobic glycolysis or fermentation. The process in which ATP is made is dependent on the availability of oxygen (see the Cellular Respiration concepts).

Explanation:

If the length of the small intestine is ( 6 ) meters and the length of the large intestine ( 1.5 ) meters. what is the ratio of the large intestine to the small intestine

Answers

Answer:

1:4

Explanation:

According to the information provided in this question, the length of the small intestine is 6 meters and the length of the large intestine 1.5 meters. This means that the small intestine is longer than the large intestine.

To find the ratio of large intestine to the small intestine, we divide each length value by the smallest (1.5) i.e.

Large intestine = 1.5 ÷ 1.5 = 1

Small intestine = 6 ÷ 1.5 = 4

The ratio of large to small intestine according to this question is 1:4

How many valence electrons does magnesium (Mg) have?
Ο Α. 12
B. Six
O C. three
O D. two

Answers

Answer:

Magnesium is in the group #2 on the periodic table of elements. This means it has two valence electrons.

Answer:

two

Explanation:

Convection currents transfer thermal energy ____.
a. as a result of buoyancy
b. from warmer regions to cooler regions
c. between continents
d. from cooler regions to warmer regions

Answers

Convection currents transfer thermal energy ( from warmer regions to cooler regions. )

2. How are humans making greenhouse gases of our own?
burning fossil fuels in our cars
burning forests
O all of these

Answers

Answer:

All of them. Plus feeding cows corn instead of grass makes them gassy.

Explanation:

Match the appropriate food item with the indicator chemical you would use to detect the principal organic molecule present in that item.
Note: some indicator chemicals may be used for more than one of these food items or not at all.
B. raspberry jam
A. benedict's solution
B. benedict's solution
E. V ground turkey
C. lodine
C. plain oatmeal
D. sudan IV
A honey
E. bluret reagent

Answers

Answer:

raspberry jam -  benedict's solution

honey -  benedict's solution

ground turkey - biuret reagent

oatmeal - iodine

Explanation:

Benedict's test is a test used to confirm simple carbohydrates. it helps in identifying reducing sugars that have free ketone or aldehyde functional groups. Raspberry jam has mainly carbohydrates that can be tested by this indicator.

An iodine test is for the determination of starch which is a non-reducing sugar such as oatmeal

Sudan IV (C24H20N4O) is used for the presence of staining of lipids, triglycerides and lipoproteins. There is no food item given that has a proper amount of fat or lipid

Beuret reagent is a protein testing reagent that shows the presence of the protein. Ground turkey has a huge amount of protein that can be indicated by this

TRUE or FALSE: “ The change from a T to a C at position 3 caused all the changes that exist between the cichlid and the coelacanth/frog.” Explain your answer.

Answers

the answer is true i

What was scientific racism seen in the eugenics movement

Answers

Answer:

The Eugenics Record Office also maintained there was clear evidence that supposed negative family traits were caused by bad genes, not racism, economics or the social views of the time.

Explanation:

Who developed virtually the same theory of evolution?
Select one:
O a. Wallace
O b. Malthus
O c. Lamarck
O d. Lyell

Answers

Answer: I’m pretty sure it's Lamarck

Explanation:

I’m sorry if it’s wrong

I believe its Wallace because the question asked for SAME THEORY OF EVOLUTION

please help!! il give brainlist

Answers

which question do u need help with??

Answer:

1-they are cats

2-different colors

3-orange.white.and black

Explanation:

What type of cells do you find homologous chromosomes?

Answers

"Human cells that contain one set of 23 chromosomes are called gametes, or sex cells; these eggs and sperm are designated n, or haploid. The matched pairs of chromosomes in a diploid organism are called homologous chromosomes."

As the medical examiner performs an autopsy on a body found in a nearby forest, she collects sand from between the victim's toes
that is identical to sand from a beach located 20 miles from the scene. What is the most important reason that this is relevant to
the case?
A)
It suggests that the victim may have drowned.
B)
It suggests that the victim may have taken a recent vacation.
0
It suggests that the crime may have occurred at another site.
D
It suggests that the suspect may have been to the beach recently.

Answers

Answer:

It suggests that the crime may have occurred at another site.

Students conducted an investigation on the properties of three elements. What type of element should sulfur be labeled? plz help ;(

Answers

Answer:

one of them is oxygen but I'm not sure about the others sorry

How dose human activity effect the water cycle

Answers

Human Impacts on the Global Water Cycle: Effects on Sea-Level and Climate. Large-scale human manipulation of water has significantly altered global patterns of streamflow. Resulting changes in sea level, ocean salinity, and in biophysical properties of the land surface could ultimately generate climate feedbacks

please answer!!

what would the offspring of a chicken look like if feather color were inherited through incomplete dominance?

Answers

They would be mixed or create a new colour. For example, if one chicken was black and the other was white, the colours would mix to get grey offspring :)

why aren't scientific theories just called facts?

Answers

Answer:

Explanation:

Is this a question or a joke?

YO PLZ HELP MEH!!!!
3. _________ are vesicles that use oxygen to break down toxic substances in the cell.
a. Transport vesicles
b. Lysosomes
c. Peroxisomes
d. None of the above

Answers

peroxisomes is that answer

draw a line from each hormone in list A to the correct information in list B

Answers

Answer:

The correct answer would be -

FSH - used as fertility drugs to makes egg mature.

LS - stimulates the release of eggs.

Oestrogen - causes the lining of the womb to break down.

Explanation:

FSH is a hormone released from the pituitary gland and is the abbreviation of Follicle-stimulating hormone which controls the menstrual cycle and growth of eggs in ovaries. It is also used as a fertility drug that promotes the growth of eggs to mature it.

LS or Luteinising hormone is the hormone that is released from the pituitary gland and promotes the surge of the release of eggs.

Oestrogen is the hormone that helps females during puberty during the menstrual cycle to breakdown the lining of the womb.

Which is NOT a characteristic that all animals share? heterotrophs unicellular cells with a nucleus

Answers

Answer:

animals are multicellular

Explanation:

Name 3 BIOTIC things in this photo of the ecosystem. PLEASE HELP

Answers

Answer:

3 biotic things in the above photo are-

AnimalsBirdsPlants

How do scientists use fossils to study climate?
PLS HELP

Answers

Answer:

Many small organisms can be preserved within these layers of sediment through time. The changing abundances of these fossils through time can tell us whether a change in the environment or climate was gradual or abrupt. Studying fossil pollen and other fossils helps scientists to learn more about climate change.

Answer:

How do scientists use fossils to study climate?

Answer=

Fossils are used by scientists to study climate.The changing abundances of these fossils through time can tell us whether a change in the environment or climate was gradual or abrupt. Studying fossil pollen and other fossils helps scientists to learn more about climate change.

 Hope it Helps

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Which is the link between fossil fuel use and flowers blooming earlier in the spring season?

A. A warmer Earth due to fossil fuel emissions has milder winters and earlier springs.
B. Fossil fuel emissions contain compounds that are fertilizers.
C. Spring seasons are cooler due to increased fossil fuel emissions.
D. Increased greenhouse gases due to fossil fuel emissions allows more sunlight to reach Earth.

Answers

Your answer is A. Have a good day! Also, any answer that says, ‘Here is the link to your answer: (link)’ DO NOT CLICK ON IT!!!
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