Hey guys could you help me???


Which of the following is NOT a difference between RNA and DNA in human cells?
A.
RNA is single stranded and DNA is double stranded.
B.
DNA is helical and RNA is not.
C.
The nitrogenous bases of RNA are never hydrogen-bonded to other bases.
D.
none of the above

Answers

Answer 1

Answer:

C.

Explanation:

because RNA is single stranded and no pairing of bases occur


Related Questions

necesito un impacto negativo de la biodiversidad del mosquito aedeomyia squamiennis
ayuda:/​

Answers

Answer:

El cambio climático tiene un impacto negativo.

Explicación:

El impacto negativo en la biodiversidad del mosquito aedeomyia squamiennis se debe al cambio climático que disminuye su población porque el cambio climático hace que el medio ambiente sea desfavorable para el mosquito. Debido a este cambio climático, aquellos organismos que se adoptan de acuerdo con el cambio ambiental pueden sobrevivir pero aquellos que no pueden extinguirse del medio ambiente, por lo que podemos decir que el cambio climático tiene un efecto negativo en la biodiversidad del mosquito aedeomyia squamiennis.

You want to know whether chewing gum will cause someone to perform better on tests. When designing the experiment, which of the following best describes your control group?

Select one:
a. A group of individuals that chew two pieces of gum.
b. A group of individuals not chewing gum.
c. A group of individuals that sucked on hard candy.
d. A group of individuals that chew a half a piece of gum.

Answers

Answer: b

Explanation:

Answer:  A group of individuals not chewing gum.

Explanation: A control group is what you are going to compare the experimental group to. Since you are experimenting on if gum will cause someone to perform better on tests you will compare their score to the group that's not chewing gum.

Can someone write the first paragraph

Answers

Hii!!

The purpose of mitosis is to create two new perfectly identical cells when either there is a need to replace old or damaged cells and to reproduce asexually by making new cells. Some organisms use mitosis to replace body parts. For example starfish replace lost arms by mitosis. Some organisms such as the hydra use mitosis to produce genetically identical offspring.

There are four stages of mitosis: prophase, metaphase, anaphase and telophase.

1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres

2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell)

3) Anaphase: sister chromatids are pulled to opposite poles of the cell

4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin

● The order of the stages of mitosis can be remembered using the mnemonic PMAT.

Hope this helps!! if it has pls mark me as the brainliest Xd :D

WILL MARK BRAINLIEST!!!!!!!
Which choice names the two parts of Earth that make up the lithosphere?


crust and outer part of the mantle


mantle and outer core


inner core and mantle


inner core and outer core

Answers

The lithosphere is made up of the crust and the upper mantle so the answer is the first choice. crust and outer part of the mantle

Answer:

crust and outer part of the mantle

Explanation:

lithosphere includes brittle upper portion of the mantle and crust and the outer most layers of the earths structure and it is bound by the atmosphere above the asthenosphere

HELP ME PLEASE DUE SOON

Answers

Answer:

food, mates and competition with other animals are limiting biotic factors

Space, temperature, altitude, sunlight are limiting abiotic factors


7. Slime molds are fungus like protists, but they are not fungi. Why?

Answers

Answer:

Because they can move

Explanation:

Fungi cannot make food themselves so they depend heavily on hosts. Also fungi lack the proper cilia to move, so they use spores instead to "move".

In the case of slime mold, they are like an animal fungus per se. They are like Protozoa in their amoeboid plasmodial stage and similar to true fungi in spore formation.

What is Mitochondria​

Answers

Mitochondria was the powerhouse of the cell it contain oxidative enzymes that are needed for the stepwise oxydation of food by co2 and water. later on it converts the glucose into Atp and provide energy to body for doing activities

Hope it helps

Answer:

Mitochondria are like the power plants of the cell, similar to the engine of a car.

Mitochondria are organelles and they convert chemical energy (from food) into ATP, the main energy source for cellular work. Mitochondria suck and take in nutrients, break them down, and use it to make energy through the process of cellular respiration. One single cell has many mitochondria (1000 - 2000). This number really depends on the function of the cell.

For example, a nerve cell needs less energy than a muscle cell, and therefore will have fewer mitochondria. Kind of like a fast car needs a bigger engine than a slower car.

Also,

The mitochondria are closed in by two membranes. The outer membrane is the one that covers the organelle, and the inner membrane forms a special compartment with a fluid called the mitochondrial matrix. The inner membrane contains many folds called cristae, which increase the surface area inside the organelle. This increases the efficiency of the chemical reactions, allowing the mitochondria to create more ATP.

Hope this helped!

Genes determine the_____of an individual.

Answers

Answer:

traits of an individual

Explanation:

Which level of organization is formed from two or more different tissues that group together and perform a function? (4 points) Molecule Organ Organ system Tissue

Answers

Answer:

i think system is correct

Explanation:

for example heart is an organ. it has muscle tissue .epithelial tissue . connective tissue nervous tissue

remove dirts using hard cloth​

Answers

Answer:

It can easily remove dirt.

Explanation:

When dirt is present on the hard surface such as car or machines so it can be cleaned by using hard cloth because the dirt attached tightly to the surface which can only be removed from that surface with the help of using hard cloth. Hard cloth has rough surface which easily remove the dirt from the surface as compared to the light cloth so that's why hard cloth is used to remove dirt from the surface.

Can someone help me answer the last 2 question (#3 and 4). It asks about diabetes.

Answers

I really hope this helps! I tried. And for the last one I’m not sure about it.
- sorry

What sentence that is true about Charles Darwin.

a. He was born in 1809.

b. He was an English naturalist.

c. He was 42 when he began the voyage on the Beagle.

d. The voyage lasted five years and took him around the
world

Answers

Answer:

I think it's D but I'm not sure

I think d but I’m not positive

What happens to the air around your vocal cords when you speak?
a. It is heated
b. It is cooled
c. It is forced down your windpipe
d. It expands and contracts

Answers

D. It expands and contrasts

Hope this helps!!

does anyone know this?

Answers

Answer:

No

Explanation:

Emest Rutherford's atomic model included a nucleus comprised of positive particles called protons. Later, James Chadwick discovered neutrons. How did
Chadwick's discovery change the atomic model?
A The new model showed a negatively charged nucleus.
B. The new model showed a neutrally charged nucleus
C. The new model showed a larger electron cloud.
D. The new model showed a nucleus with two types of particles

Answers

Answer:

D

Explanation:

It can't be A as nuclei must be positive.

It can't be B as nuclei must contain at least one proton, and no electrons.

Technically C may be true, but the question is asking about the nucleus. Not the electron cloud. Electrons aren't found in the nucleus. Only protons and neutrons.

Please help! Just one question! :)

Answers

Answer:

semiconservative

Explanation:

Charles Darwin referred to this as survival of the fittest. Over time, it results in changes in the inherited characteristics of a population. A. Natural Selection B. Evolution. C. Genetic Variation D. Extinction​

Answers

I believe the answer is D.

hi guys please tell me what r the methods to stop growth of population please answer it's urgent​

Answers

There are the following steps to control population

Using barriers like condoms.,diapgrams etceducate people about this spread awareness in society

Hope it helps u

1. family planning
2. enforce one child per family
3. provide safe and effective contraceptive options for all

Interphase is when a cell is growing, replicating its DNA, and carrying out cell processes. Which of these is correct regarding its occurrence? A) at It does not occur before mitosis and occurs once before meiosis. b)It occurs once before mitosis and twice before meiosis. c)It occurs once before mitosis and once before meiosis. d) It occurs once before mitosis and does not occur before meiosis.

Answers

Answer: C) It occurs once before mitosis and once before meiosis.

Explanation:

Answer:

C) It occurs once before mitosis and once before meiosis.

State four (4) differences between a plant cell and an animal​

Answers

A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.

Please help this will help me pass high school I just need this one answer please will like it

Answers

Answer:

B

Explanation:

as humans grow, their bodies change. Which of these statements explains how humans grow?
A. cells from a cell wall
B. cells undergo mitosis
C. cells increase in size
D. cells merge to become larger

Answers

Answer:

B. cells undergo mitosis

Explanation:

Many organisms increase in size over time. However, it is not because the cells are increasing in size. It is because of mitosis, in which the cell are multiplying in amount, or increasing in number.

What is the purpose of the electron transport chain?

Answers

Answer:

to turn the atp synthase crank and make atp using the proton gradient

Explanation:

Which group has the smallest dispersal distances *
1 point
a) Seaweeds
b) Fish
c) Crabs
d) Marine Snails

Answers

Answer:

d) Marine Snails

Explanation:

Marine Snails has the smallest dispersal distance because of their slow mobility. These marine snails have very limited mobility when they are adults and spend their majority of lifetimes in a small geographical area. Dispersal distance refers to the distance a species can move from an existing place or population or the parent organism. According to this definition we can say that marine snails have the smallest dispersal distances.

what does DNA need to replicate

Answers

In order to replicate, DNA needs the help of a lot of enzymes and primers (helicase, DNA polymerase, RNA primer, ligase, etc) It is also SUPER important that there is a template for the DNA to replicate off of so that the genetic info is passed on from one generation to the next without any changes or damage to the DNA

What was Darwin's famous trip on the H.M.S beagle?

Answers

Answer:

In 1831, Charles Darwin received an astounding invitation: to join the HMS Beagle as ship's naturalist for a trip around the world. For most of the next five years, the Beagle surveyed the coast of South America, leaving Darwin free to explore the continent and islands, including the Galápagos.

9. Why is the synthesis stage called this?
a. because protein synthesis is taking place
b. because DNA synthesis is taking place
c. because it combines several smaller stages into one
d. because the chromosomes come together

Answers

Your answer should be B. Because DNA synthesis is taking place

help please!!! it’s due in 2 hours!

Answers

Explanation:

1.) The action of admitting someone into a secret and obscure society or group, typically with a ritual.

2.) The action or process of lengthening something.

3.) The action of termination something or the fact of being terminating.

Erwin Chargaff examined DNA samples from different organisms to study base pairing. Some data from DNA
samples are shown.
Organism
Adenine
Guanine
Cytosine
Thymine
Sea urchin
32.8%
17.7%
17.3%
32.1%
Salmon
29.7%
20.8%
20.4%
29.1%
Wheat
28.1%
21.8%
22.7%
27.4%
Which conclusion is supported by the data in the table?
А
Each organism contains more cytosine than any other base.
В B
The three organisms have the same sequence of nucleotides.
1-35
Rack
Review/ind

Answers

Answer:

D

Explanation:

The presence of each base is dependent on the size of the organism. So, the correct option is D.

What is Base pairing?

A base pair is defined as the basic unit of a double-stranded nucleic acid, consisting of two nucleobases bound to each other by hydrogen bonds, where they form the building blocks of the DNA double helix and the folding of both DNA and RNA contribute to the structure.

The rules of base pairing are:

A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T), bond with double bondC with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G), bond with triple bond.

The base pair also depend on the size of each organism.

Thus, the presence of each base is dependent on the size of the organism. So, the correct option is D.

Learn more about Base pairing, here:

https://brainly.com/question/17254975

#SPJ2

Your question is incomplete, most probably the complete question is :

Erwin Chargaff examined DNA samples from different

organisms to study base pairing. Some data from DNA

samples are shown.

Which conclusion is supported by the data in the table?

A. Each organism contains more cytosine than any other base.

B The three organisms have the same sequence of nucleotides.

C. All three organisms contain the same types of nitrogen bases.

D. The presence of each base is dependent on the size of the organism.

What is a biodigester?

Pls answer...

Answers

Answer:

A system that biologically digests organic material

A biodigester is a system which biologically digest organic materials..

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