Which of the following is used to describe DNA's double helix shape?

A. folded ladder
B. twisted pentagon
C. twisted ladder​

Answers

Answer 1
the answer is C, twisted ladder
Answer 2

Answer:

twisted ladder

Explanation:


Related Questions

What effect do ocean currents have on a biome?

Answers

Answer:Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.

Explanation:

Answer:

erosion on the sea side of it a way of drainage when it rains and moist soil near it

Explanation:

Which of the following is paired correctly? *
Phenotype- BB
O Genotype- Ft
Acquired trait-eye color
Inherited trait-tattoo

Answers

The answer is the genotype

which of the following occurs when a gene is expressed

Answers

think you forgot to add a picture but the thing that happens when a gene is expressed is the process by which the instructions in our DNA are converted into a functional product

true or false:
One difference between somatic cells and gametes is that somatic cells are identical to one another, while gametes are not

Answers

Answer:

true.

Explanation:

all the somatic cells of an organism have same number of chromosomes while gametes are haploid and have half number of chromosomes. so gametes are different from somatic cells.

praw a diagram of the different type of
Soil horizon​

Answers

Answer:

diagram

hope this pic helps you

Answer:

Hope it will help you be happy ^_^

what kind of animals that has secrete chemicals to defend themselves??​

Answers

Answer:

sea hares, cuttlefish, squid and octopuses

Explanation:

They give themselves a last chance to escape by distracting their attackers,; to do this, they eject a mixture of chemicals, otherwise confuse predators.

Hope that helps

What animal is this

Answers

Isn’t that an Eagle bird ?
I think that’s a black cormorant

The bark of a tree trunk includes which of the following tissues?
A. primary and secondary phloem
B. Heartwood and phloem
C. Heartwood and sapwood
D. Secondary phloem and layers of periderm

Answers

D. Secondary online and layers of periderm

In some cases, a trait is determined by multiple alleles interacting. in rabbits, coat color is one of those traits. Therefore alleles for color color each of which causes a different phenotype. Exam in the table below and answer the question. A Himalayan and a chinchilla mate, and some of the resulting offspring are white. What
must the genotypes of the parents be?

Answers

Answer:

I would think it would be the third answer but don't count on that

Pls help me.......... ​

Answers

Answer:i got u

Explanation:

Answer:

what in the world am I supposed to find

A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two
very different organisms? SC.912.L.14.1
Plants have cells but animals do not
They are both made of one or more cells.
They both come from the same kind of cell.
O They both come from a non-living organism.

Answers

Answer:

They are both made of one or more cells.

Explanation:

A plant and an animal are both living things. According to the Cell Theory, what we can conclude about these two very different organisms is that they are both made of one or more cells.

A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.

A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.

Generally, cells have the ability to independently replicate themselves.

In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles and they include nucleus, cytoplasm, cell membrane, golgi apparatus, mitochondria, lysosomes, ribosomes, chromosomes, endoplasmic reticulum, vesicles, etc.

What is the world's smallest country?

Answers

Vatican City is the smallest country in the world

Answer:

Vatican City is the smallest country in the world, with an area of 526,235.6 square yards.

Explanation:

which body structure have walls one cell thick

Answers

Answer:

Capillaries

Explanation:

Capillaries. Capillaries connect the smallest branches of arteries and veins. The capillaries are where molecules are exchanged between the blood and the body's cells. The walls of capillaries are just one cell thick.

The only body structure that has walls one cell thick is capillaries.

What are capillaries?

Capillaries, the blood vessels in our bodies are so minuscule that red blood cells can only travel through them in a line. Comprised of a layer of cells capillaries facilitate the exchange of crucial substances like oxygen carbon dioxide, nutrients and waste materials, between the bloodstream and the surrounding tissues.

With the above details we can conclude that the  body structure that has walls one cell thick is capillaries.

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What occurs at step 3 in the diagram?
O The restriction enzymes cut the isolated DNA into fragments.
The gene of interest is inserted into an expression cassette.
The recombinant DNA is inserted into the host cell nucleus via a vector.
O The expression cassette is inserted into a plasmid for cloning.

Answers

Answer:

A

Explanation:

The restriction enzymes cut the isolated DNA into fragments

Answer:

its B on edge

Explanation:

This question may be completed independently or as a group exercise. You have learned that humans have 46 total chromosomes, and chimpanzees have 48 total chromosomes. Use other textbooks in biological anthropology and biology (or reputable online resources) to find the number of chromosomes in other organisms. Give an organism with considerably more chromosomes than humans. Give an organism with considerably fewer chromosomes than humans. Did your findings surprise you

Answers

Answer:

In comparison to humans, there are more chromosomes in the Hermit crab that is 127 pairs of chromosomes for a grand total of 254 and in Myrmecia pilosula has fewer chromosomes than humans.

The complexity of an organism or how advance is an organism has nothing to do with the number of chromosomes it had. The chromosome number is subject to change over time. Human ancestors had more chromosome numbers as compared to now but they are not advanced to us.

5. Dieting often leads to weight gain.
True
False

Answers

Answer:

the answer is false. Dieting usually leads to weight loss.

The diagram above represents the phases of the moon. Position 1 represents the
new moon. Positions 2 through 8 represent the phases of the moon that follow.
Which phase does position 8 represent?

Answers

Answer:

waxing crescent

Explanation:

Position 8 represents waxing crescent phase. It is observed after a new moon and can be observed until the first quarter of moon.

What are the phases of moon?

The waxing and waning nature of the moon is responsible for its various phases. This is due to the fact that moon is the only natural satellite of the earth. It revolves around the earth in a fixed orbit.

As earth revolves around the sun, the sunlight that falls on moon makes us visble those parts. Thus, it appears that moon is changing its shape.

A lunar month which is of 29.5 days usually is contains four primary and four intermediate phases. It is described as: New moon, Waxing crescent moon, First quarter, Waxing gibbous moon, Full moon, Waning gibbous, Last quarter and Waning crescent moon.

These phases have specific time in which they can be observed in the sky. New moon is an exception, as no part of the moon is visible then.

The phases of the moon are therefore considered as astronomically important.

Learn more about moon, here:

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Identical twins, who have inherited a gene associated with obesity, are adopted by different families. One is growing up in a very health
conscious family, while the other is growing up in a family that eats a lot of fast food and never exercises. Which statement describes the
likely weights upon reaching adulthood (correct answer will get brainliest) please answer :(

Answers

Answer: it’s c mister

Explanation:

Which of the following is/are among the functions of the eukaryotic cytoskeleton? Select all that apply.

Answers

Answer:

Explanation:

I have no ideaaa. This stuff wack.

The cytoskeleton is made up of a dynamic connection of protein filaments found in all the cells. Under the eukaryotic, it is made by the microfilaments, microtubes. Giving shape and structure to the system.

The eukaryotic cytoskeleton consists of three main types of firmaments. Such as those which are connected by the neurons are know as neurofilaments. These are a distinct types of subnet that have their own character, shape, and size. Being composed of lots of proteins also helps in the division of cells.

Hence the option A and E are correct. that it gives cells shape and structure and helps in cell division.

brainly.com/question/21276757.

All cells have DNA that must be replicated True or false

Answers

The answer is True.

Which of the following is true regarding the process shown below?

A. This process is cloning and involves the production of RNA from protein molecules.
B. This process is replication and involves the production of DNA from RNA.
C. This process is translation and involves the production of proteins from RNA.
D. This process is transcription and involves the production of proteins from DNA.

Answers

Answer:

C. This process is translation and involves the production of proteins from RNA.

Explanation:

- In the process of protein synthesis, the first step is called “transcription”. In transcription, the mRNA (messenger RNA) unwinds DNA base pairs, and pairs it with the single strand of RNA (A,U,C,&G) . Then the mRNA moves out of the nucleus and into the cytoplasm to ribosome. That process is called “translation”. In translation, there is a molecule called tRNA (transfer RNA). There is an amino acid which corresponds to the base pairs of RNA in top, which will create a chain of amino acids.

Answer:

Translation

Explanation:

What are some ways that stars can be different?

Answers

Answer:

hello

Explanation:

the star is the far from earth they are big as the not look from the earth .they look twinkel because of atomphere refraction which make the wavelengh of star into the increasing and decreasing wave when increase wave come to our eyes it look bright and when decrease it look dim while plant can not do

Answer:Their brightness is one of the 3 reasons on how you can tell them apart Their brightness is a factor of how much energy they put out–known as luminosity an also how far away they are from earth .Color can also  fluctuate from star to star because Not all stars are the same temperature!Some are more cool and some are warmer!Hot stars appear white or blue, rather with cooler stars appear to have orange or red hues.We would normally think a orange or red would mean hot but no in this case!

What are stars made up of?

Stars are made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. All  the dots of light we see in the sky are all light-years from Earth!

Solid or gas?

Stars are The first state is a solid and it is the coldest state of matter.

Are stars alive?!

No silly stars are not alive !Their “birth and death.” It's a convenient, if fanciful, way of describing the ultimately ill-fated relationship between matter and energy that is a star.

An exotic species is the same as an invasive species.
True
False

Answers

Answer:

False

Explanation:

Exotic species are species brought to and unfamiliar environment, just like invasive species. There is a difference between the two however. Exotic species are indeed not native to their environment, but unlike invasive species, they are not harmful to the ecosystem. In order for an exotic species to become invasive, it must out-compete native organisms for food and therefore cause harm to the ecosystem. Non-native species that do not out-compete species remain exotic and not a high risk of disrupting the ecosystem.

Hope this helps!

Give an example of positive slope.

Answers

Answer:

slope=4

or I found this one where it says as the number of people that quit smoking increases, the number of people who get lung cancer decreases if this is what you mean

Explanation:

I think this is what you were asking, as long as it is a positive number it is a positive slope

Expanded volcanic rock used as a soil amendment is known as _____.
A- Perlite
B- Vermiculite
C- Peat
D- Sand

Answers

Answer:

A or B

Explanation

I think it is A or B hope it helps ;-;

A(n)
bond forms between a hydrogen atom with a partial positive charge on one
molecule and another atom, such as oxygen, with a partial negative charge on an adjacent molecule.

Answers

Answer:

Due to difference in the values of electronegativities.

Explanation:

A covalent bond is formed between hydrogen atom with a partial positive charge on it and another atom, such as oxygen, have a partial negative charge on an adjacent molecule. This is because of the difference in the values of electronegativities. The hydrogen atom has lower electronegativity value as compared to oxygen so the shared pair of electron is slightly attracted by oxygen atom towards itself and formed partial positive charge on hydrogen and partial negative charge on oxygen atom.

Answer:

hydrogen

Explanation:

NEED HELP WITH THIS QUESTION!!! PLEASE HELP ME!!!

Answers

Answer: xylem

Explanation:

Direction of transport : Xylem= Upwards

Phloem=Upwards and downwards

Petunia flower color is governed by two alleles, but neither allele is truly dominant over the other. Petunias with the genotype R1 R1 are red-flowered, those that are heterozygous (R1 R2 ) are pink, and those with the R2 R2 genotype are white. This is an example of incomplete dominance. (Note that superscripts are used rather than upper- and lowercase letters to describe the alleles).
a. If a white-flowered plant is crossed with a red-flowered plant, what is the genotypic ratio of the F1?b. What is the phenotypic ratio of the F1?c. If two of the F1 offspring were crossed, what phenotypes would appear in the F2?d. What would be the genotypic ratio in the F2 generation?

Answers

Answer:

a. 4 R¹R²

b. 4 Pink flowers

c. 1 Red, 2 pink and 1 white phenotypes

d. 1R¹R¹ : 2R¹R² : 1R²R²

Explanation:

This question involves a single gene coding for flower color in petunia plants. However, the allele for red flower color (R¹) is incompletely dominant over the allele for white flower color (R²), hence, a pink intermediate phenotype (R¹R²) is formed.

According to these questions;

A. If a white-flowered plant (R²R²) is crossed with a red-flowered plant (R¹R¹), all of the F1 generation will have a genotype of R¹R² (see attached image for punnet square).

B. The F1 generation, which possess a genotype: R¹R² will express the pink flower phenotype because neither of the two alleles are truly dominant over the other i.e incomplete dominance.

C. If two of the F1 offspring were crossed i.e. R¹R² × R¹R², each parent will produce R¹ and R² gametes. Using these gametes in a punnet square (see attached image), the following phenotypes will be produced in the F2 generation: Red, pink and white phenotypes

D. The F2 generation will possess a genotypic ratio of 1R¹R¹ : 2R¹R² : 1R²R².

Which of the following phenotypic classes reflect offspring that were generated as a result of a crossover event? Select all that apply. Select all that apply. wild type miniature wings garnet eyes miniature wings, garnet eyes SubmitRequest Answer Part B If 800 offspring were produced from the cross, in what numbers would you expect the following phenotypes? __wild type : __ miniature wings : __ garnet eyes : __ miniature wings, garnet eyes Enter your answer as the number of flies of each phenotype separated by a colon (example: 100:300:100:300).

Answers

Complete question:

The genes for miniature wings (m) and garnet eyes (g) are approximately 8 map units apart on chromosome 1 in Drosophila. Phenotypically wild-type females (m + g / mg +) were mated to miniature-winged males with garnet eyes.

Part A

Which of the following phenotypic classes reflect offspring that were generated as a result of a crossover event?

Select all that apply.

garnet eyes wild type miniature wings miniature wings, garnet eyes

Part B

If 800 offspring were produced from the cross, in what numbers would you expect the following phenotypes?

__wild type : __ miniature wings : __ garnet eyes : __ miniature wings, garnet eyes

Enter your answer as the number of flies of each phenotype separated by a colon (example: 100:300:100:300).

Answer:

Part A:

2. wild type (m+g+/mg)

4. miniature wings, garnet eyes (mg/mg)

Part B:

32:368:368:32  

Explanation:

When calculating the recombination frequency, we need to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.  

The map unit is the distance between the pair of genes for which every 100 meiotic products, only one results in a recombinant one.  

So, en the exposed example:

PART A:

First, we need to Identify the gametes for the individual with the genotype m + g / mg + and label parental and recombinants

Gametes:

m+ g parental type m g+ parental type m+ g+ recombinant typem g recombinant type

Knowing that the only possible gamete type for the other parental is mg, then we can identify the phenotypic classes of the offspring that were generated as a result of a crossover event. These would be

2. wild type (m+g+/mg)

4. miniature wings, garnet eyes (mg/mg)

PART B:

We know that the total number of individuals equals 800.We also know that the distance between genes equals 8 MU.

To calculate the number of the phenotypes among the offsprings,

          8 map units = 8% of recombination in total  

                               = 8/2% m+g+/mg + 8/2% mg/mg  

                                = 4% + 4%

The recombination frequency of m+g+/mg equals 0.04

The recombination frequency of mg/mg equals 0.04.

               

             100% - 8% = 92% of parental in total =

                               = 92/2% of m+ g/mg + 92/2% m g+/mg  

                               = 46% + 46%

The recombination frequency of m+g/mg equals 0.46

The recombination frequency of mg+/mg equals 0.46.

The frequency for each ggenotype is:

F (m+g+/mg) = 0.04  F (mg/mg) = 0.04. F (m+g/mg) = 0.46 F (mg+/mg) = 0.46.

The number of individuals with each genotype is:

m+g+/mg = 0.04 x 800 = 32mg/mg = 0.04 x 800 = 32m+g/mg = 0.46 x 800 = 368m g+/mg = 0.46 x 800 = 368

32 wild type : 368 miniature wings : 368 garnet eyes : 32 miniature wings, garnet eyes

In cystic fibrosis, an important protein destined for the plasma membrane never makes it beyond the Golgi complex. This protein is necessary for Na and Cl- transport and is critical for maintaining mucous secretions of the appropriate consistency. Devise an explanation for why this may occur.

Answers

Answer:

The correct answer is - Golgi apparatus marks or tags on this protein as incorrect or dysfunctional tags which then prevents it from transported to the membrane.

Explanation:

The role of the Golgi apparatus is to process and package the proteins produced and come from ER and transfer them to the plasma membrane in order to transfer them to their target sites.

The Golgi apparatus marks or tags the proteins that are incorrect or dysfunctional, in order to prevent these proteins from transporting to the plasma membrane and harm the membrane. In CF, the case is similar as the Golgi apparatus tags these proteins as incorrect or dysfunctional.

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