what are the two strands of DNA

Answers

Answer 1

Answer:

The DNA molecule consists of two strands that wind around one another to form a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), and thymine (T). But there are two types of DNA in the cell – autosomal DNA and mitochondrial DNA. Autosomal DNA (also called nuclear DNA) is packaged into 22 paired chromosomes. In each pair of autosomes, one was inherited from the mother and one was inherited from the father.

Extra: Because the two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner. Before replication can occur, the length of the DNA double helix about to be copied must be unwound.

Answer 2

Answer:

The two DNA strands are the DNA molecule consists of two strands that wind around one another to form a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), and thymine (T).

There are two types of DNA in the cell – autosomal DNA and mitochondrial DNA. Autosomal DNA (also called nuclear DNA) is packaged into 22 paired chromosomes. In each pair of autosomes, one was inherited from the mother and one was inherited from the father.

There are 2 chromosomes.

The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Human cells contain 23 pairs of chromosomes (46 chromosomes in total). Each chromosome is formed by 2 strands of DNA that hydrogen-bonded to each other make the classic DNA double helix (double-stranded DNA).


Related Questions

How are gymnosperm seeds and angiosperm seeds different?

Answers

Answer:

angiosperms have seeds that are closed within an ovary, gymnosperms have no flowers or fruits, and have unenclosed seeds on the surface of scales or leaves

Question 4 of 10
If you know the mass and volume of an object, what can you calculate?
A. The object's height
B. The object's density
C. The object's temperature
D. The object's length

Answers

Answer:

B

Explanation

m/v

The answer must be B

This sample of air at 35°C and 60% relative humidity holds ____ grams/cubic meter of water vapor. The same sample of air at 40°C can hold a maximum of 50 grams/cubic meter of water vapor. If the air currently holds 30 grams/cubic meter, then its relative humidity is ____%.

Answers

Answer:

Since a sample of air at 35 ° C and 60% relative humidity holds 26.25 grams / cubic meter of water vapor. The same sample of air at 40 ° C can hold a maximum of 50 grams / cubic meter of water vapor. If the air currently holds 30 grams / cubic meter, then its relative humidity is 60%.

Explanation:

To solve the following question, the following calculations must be performed:

If 40ºC can have a maximum of 50 grams per cubic meter of water vapor, this would imply a total of 100% humidity. Thus, if 35º had 100% humidity, the amount of grams per cubic meter of water vapor would arise from the following calculation:

40 = 50

35 = X

35 x 50/40 = X

1750/40 = X

43.75 = X

Now, if this implies 100% humidity, to determine 60% humidity the following calculation must be carried out:

100 = 43.75

60 = X

60 x 43.75 / 100 = X

2625/100 = X

26.25 = X

Therefore, if with 100% humidity you have 50 grams per cubic meter of water vapor, with 60% humidity you would have 30 grams of water vapor per cubic meter.

Answer:

24

60

Explanation:

After water is evaporated into the air, what is most likely to happen next?

Answers

Answer: Condensation

It is most likely to condense and change into liquid (or solid) water (based on the weather conditions). This causes the formation of clouds.

What temperature does it need to be to sleet?

Answers

The temperature to sleet needs to be at 32 F or 0 C.

32 degrees F or 0 degrees C

Why is photosynthesis is essential to life on earth

Answers

Answer:

Without photosynthesis, the carbon cycle could not occur,  life would not survive and plants would die.

Hope this helps!

Photosynthesis is essential to life on Earth because it is the most important source of Oxygen in the atmosphere. It’s also important because all producers make oxygen and sugar for the secondary consumers and then the carnivores eat animals that consume plants.

What is meant by the term "UV"? In your answer, please explain how it
impacts humans and what it has to do with the atmosphere.

Answers

Answer:

The term UV stands for Ultraviolet.

Explanation:

Ultraviolet light is a form of electromagnetic radiation which is shorter than that of visible light, but longer than X-rays. This impacts humans because it can provide harmful effects. For example, UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles and leathery skin. They also cause eye problems. However, our atmosphere blocks a lot of the UV rays from the sun which is amazing because if we were every exposed to it, we would die lol

"Ultraviolet light can't be seen by the human eye but is a part of sunlight. It can be harmful to us if we are exposed to it (sunburn!) but it is mostly absorbed by the atmosphere. The presence of UV light in sunlight can be shown by using fluorescing UV-sensitive beads."

Hope that helps!

How .....................................................................................................................

Answers

Answer:

how? what do you mean

Explanation:

how what :)gl

Answer:

um how what?

Explanation:

how many phenotypes can be produced by a pair of co-dominant alleles (BW x BW)​

Answers

It’s 1 chicken burger

Answer:

4

Explanation:

There is a 25% chance of it being BB, 50%  of it being BW, and a 25% chance of being WW.

In boxes A and B, the genotypes are shown for you. You need to determine the phenotypes. In boxes C and D, you must figure out the genotypes yourself first. Then, determine the phenotypes. A Punnett Square has 4 columns and 4 rows. The columns are labeled Upper B Upper E, Upper B e, b Upper E, b e. The rows are labeled Upper B e, Upper B e, b e, b e. Box A in Row 1 Column 1 contains Upper B Upper B Upper E e. Box 2 in Row 2 Column 2 contains Upper B Upper B e e. Box C in row 3 column 3 is empty. Box D in row 2 Column 4 is empty.

Answers

Answer:

Black fur black eyes

black fur red eyes

white fur black eyes

black fur black eyes.

Explanation:

Answer:

black fur, black eyes

black fur, red eyes

white fur, black eyes

black fur, red eyes

Explanation:

n the classification of organisms, which is the correct order of ranks?

Answers

The current taxonomic system now has eight levels in its hierarchy, from lowest to highest, they are: species, genus, family, order, class, phylum, kingdom, domain.

What is the organisms best suited to their environment will surprise and reproduce?

Answers

Answer: Natural selection i think

Explanation:

I have none

A sudden increase in the number of producers in an ecosystem would first
affect the population of:
carnivores
O saprophytes
decomposers
O herbivores
Question 3
25 pts

Answers

Answer:

Herbivores

Explanation:

Herbivores are the ones who eat producers and nothing is eaten by producers, so everything else affected by this change would be affected through the herbivores

hope this helps!

The DNA sequence TTT codes for the amino acid lysine. The DNA sequence TTC

also codes for lysine. What can you conclude from this information?

Answers

Answer:

The genetic code is degenerate and therefore mutations may go unnoticed.

Explanation:

Each triplet of nucleotide bases, which is known as a codon, encodes for a specific amino acid during translation. However, a single amino acid may be coded by different codons. It is for that reason that the genetic code is considered to be degenerate. In this case, Lysine amino acid can be encoded by both TTT (UUU in the mRNA) and TTC (UUC) codons, thereby a mutation T>C at the third nucleotide codon position does not affect the resulting protein (i.e., it is a silent mutation).

what three phases of the cell cycle are considered interphase

Answers

Answer:

The cell cycle has three phases that must occur before mitosis, or cell division, happens. These three phases are collectively known as interphase. They are G1, S, and G2. The G stands for gap and the S stands for synthesis.

Explanation:

The three phases of the cell cycle that are considered interphase include G1, S phase and G2.

The cell cycle can be divided into the interphase and mitotic (M) phases.

The interphase can in turn be divided into a Growth G1 phase, synthesis (S) phase and Growth G2 phase.

The synthesis of the genetic material (DNA) occurs in the S phase, whereas in G1 and G2 the cell synthesizes all materials required to enter into cell division.

In conclusion, the three phases of the cell cycle that are considered interphase include G1, S phase and G2.

Learn more in:

https://brainly.com/question/1688608

I had corona awhile ago and now most things I eat and smell are not good?

Answers

Answer:

sorry for what u went through and that's sucks lol

it usually happens because you forget the taste/smell of things, so you have to get used to it again. It may be a while for you to like foods you liked before because your taste buds are more developed now/more sensitive as well

Understanding the REDOX tower. Group of answer choices More negative E values mean: [ Choose ] More positive E values mean: [ Choose ] Compounds on the right side of the slash are: the reduced form of the compound Compounds on the left side of the slash are: the oxidized form of the compound Compounds at the top of the tower are more likely to: [ Choose ] Compounds on the bottom of the tower are more likely to:

Answers

Answer:

More negative E value means More likely to accept electrons.

More Positive E value means More likely to donate electrons.

Compounds on the right side of the slash are the reduced form of the compound.

Compounds on the left side of the slash are the oxidized form of the compound.

Explanation:

Redox tower is formed by reduction oxidation reaction which transfer of electrons happen between two species. It is a chemical reaction in which oxidation number of ions changes due to gain or loss of electron.

Redox reactions involves loss/gain of electrons.

A redox reaction equation is one in which a chemical specie either donates or accepts electrons. If the value of E is negative, the specie most likely donates electrons while a positive E shows that the specie readily accepts electrons.

The compound on the left side of the slash is oxidized while the one on the right side of the slash is reduced.

Learn more about redox reaction: https://brainly.com/question/13978139

What is 3 examples of species population

Answers

Explanation:

it's can be any animal or plant

How are emergency preparedness and response interdependent on each other?
O The population recognizes the need for both processes.
O Public health is constantly concerned with both fields.
O The two processes occur separately from each other.
O The success of one depends on understanding the other.


Answers

Answer:

The answer is D) The success of one depends on understanding the other.

Explanation: Did the lesson and got the answer correct.

A blue-eyed myopic woman from a marriage with a brown-eyed man with normal vision gave birth to a brown-
eyed myopic girl and a blue-eyed boy with normal vision. The gene for myopia (B) is dominant over the gene for
normal vision (c), and the gene for brown eyes (C) is dominant over the gene for blue eyes (c). What is the
probability of the birth in this family of a brown-eyed child with normal vision?
Выберите один ответ:
a. 50%
O b. 75%
c. 0%
O d. 25%​

Answers

Answer:

option b 75%

Explanation:

this is the answer I guess

Answer:

The answer is option B 75%

Explanation:

The probability of birth of a brown-eyed child with normal vision is 75%

thank you.

3. Some organisms have traits that help
them survive in certain situations,
while others of the same species do
not. These differences happen by
due to genetic variation through
sexual reproduction,
chance
planning

Answers

Through sexual reproduction

Answer:

it is chance

Explanation:

i took the  test

What ecological factors do you think might come into play when deciding how to time a pulse flow?

Answers

Answer:

- Species inhabiting the river and surrounding areas

- Hydraulic characteristics

- Geomorphology dynamic

- Water quality

Explanation:

Presence of different species: Assay the species inhabiting the area of the river corridor. These species include invertebrates, animals such as fishes, amphibians, reptiles, birds, and mammals, and plants living near the shore and on the floodplain. These species might be affected in some portion of their life cycles by the difference in the river pulse flows. Life stages and population dynamics might be considered of importance when timing the pulse flow.

Hydraulic characteristics: Habitat in aquatic systems varies according to the season and the pulse flow. Depth, velocity, substrate, and instream cover might be considered important factors influencing the presence of different species and their development.

Geomorphology: Refers to the shape of the channel and floodplain. These will depend on the stream velocity, sedimentation, depth, among others. The river geomorphology is in constant change, from season to season. This dynamic also affects the shape of the floodplain and riparian zone.

Water quality: Refers to the difference in sediments, suspended elements, available nutrients, dissolved oxygen, and temperature. All of these affect and influence different forms of life and their evolution through the corresponding cycle stages.

Which of the following are characteristics of Ascomycota? Check all that appply. PLEASE HELP!!

Answers

Answer:

Spores reproduced in the ascus.

Important in the food industry.

Can cause disease.

Explanation:

Answer:

B,D,F

Explanation:

Spores reproduced in the ascus.

Important in the food industry.

Can cause disease.

During MEIOSIS, an event called crossing over occurs. Explain what happens during this event.​

Answers

Answer:

During meiosis, an event known as chromosomal crossing over sometimes occurs as a part of recombination. In this process, a region of one chromosome is exchanged for a region of another chromosome, thereby producing unique chromosomal combinations that further divide into haploid daughter cells.

fear of bloodthe fear of blood is called ​

Answers

Answer:

Alsbzpakvaoallabspams

Answer:

This fear of blood is termed "hemophobia," a word derived from the Greek "haima" (blood) and "phobos" (fear).

Hope it helps!!!

pls help me. with the help of diagram describe the structure of stomach​

Answers

Answer:

The stomach is a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus. As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter. The stomach secretes acid and enzymes that digest food.

Hope this helps:)

why do we spread talcum powder on a carrom board while playing

Answers

We sprinkle powder on carrom board to make the surface of the board smooth. This reduces the friction between the surface of the carrom board, the striker and the coins. As a result, the coins and the striker can move easily on the carrom board.

Give the genotypes of the pure-breeding parental flies, and the genotype(s) and phenotype(s) of the F1F1 progeny they produce. Give the genotypes of the pure-breeding parental flies, and the genotype(s) and phenotype(s) of the progeny they produce. Parental: cd /c d , cd /c d ; progeny: c d/c d . Parental: cd /c d , cd /c d ; progeny: cd /cd . Parental: cd /c d , cd /cd ; progeny: cd /c d. Parental: c d/c d, cd /cd ; progeny: cd /c d.

Answers

Complete question, Answer and Explanation:

Due to technical problems, you will find the complete question, the answer, and explanation in the attached file

Definition: This organ has many functions, including producing bile and synthesizing carbohydrates and fats.

What is the word?

Answers

The liver is the correct answer I think

Whales, sharks, and penguins, all in different classes of animals, have streamlined bodies with fins or flippers for efficient movement in water.

Ceovolution
Convergent Evolution
Divergent Evolution ​

Answers

Answer:

I believe it would be Convergent Evolution

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