What is helicase?

a protein enzyme that unwinds DNA for DNA replication

a carbohydrate that unwinds DNA for DNA replication

a deoxyribo sugar that unwinds DNA for DNA replication

Answers

Answer 1

Answer:

I think the answer would be A because it is an enzyme, not a carbohydrate or a deoxyribo.


Related Questions

What do you think would happen to the
numbers of white, gray, and black mice in generation 3?

Answers

Answer:

They camouflaged with their background. Generation 3 would have more kids, resulting in less food.

Explanation:

how energy is transferred in an ecosystem

this has to be an essay, like a whole page full. can someone help please....because I'm sorta lost on this...... ​

Answers

Answer:

Just start by writing out a chart. Like, sun supplies grass, grass helps bug, and so on :)

Yes ma’am i will be there in about a half hour or so orange green green purple green green white black green green white white.

Please answer these questions as soon as possible.


5. What is an element?


6. What happens when neutral objects interact with charged objects?


7. Do positive and negative objects always move toward each other?


8. Will positive and negative objects repel each other?


9. Will there be an interation between the two?


10. Do light weight objects seem to be attracted to charged objects?


11. How does an objects charge affect it's interactions with neutral objects?

Answers

I know an element, an element is a part or aspect of something abstract

What is the cell cycle?

Answers

Answer:

A cell cycle is a series of events that takes place in a cell as it grows and divides

Answer:

Cell cycle is the order sequence of events that occur in a cell in preparation for cell division. The cell cycle is a fourth stage process in which the cell increases in size, Copies its DNA, Prepares to divide, and divides

Explanation:

Question 11 (1 point)
Saved
The simple one-celled organism seen here moves by streaming its cytoplasm into “false feet “ or pseudopods. It can easily change shape to move and engulf its food. What is the name of this animal-like protists?



Question 11 options:

amoeba


paramecium


euglenoid


Diatoms

Question 12 (1 point)
Saved
Both the euglena and paramecium seen here have___?



Question 12 options:

chlorophyll and are producers


projections that help them move


specialized cells to detect light.


a macronucleus and a micronucleus.

Question 13 (1 point)
We use yeast, seen below, when we make bread. Some warm water and a little sugar and yeast are ready to divide through budding. Each yeast cell is identical to its parent cell. This is similar to regeneration in protists. This is a form of __________ reproduction.



Question 13 options:

abiotic


asexual


genetic


sexual

Question 14 (1 point)
Lichens, like the one shown in the picture below, are usually combinations of algae and fungi that have a beneficial “mutualisic” relationship know as _____?



Question 14 options:

saprophytic


parasitic


symbiotic


autotrophic

Question 15 (1 point)
Fungi can be beneficial or destructive. One type of fungi, corn smut, attack grain plants like corn. What would likely happen to these crops when they are attacked by smut?



Question 15 options:

The crop yield is increased, because the fungi is symbiotic.


The plants stop reproducing


Results in huge crop loss, because the fungi is parasitic.

Question 16 (1 point)
Which letter from the fungus diagram represents the hyphae?



Question 16 options:

Point A


Point B


Point C


Point D

Question 17 (1 point)
Jimmy and Joanna were walking in their backyard and noticed a mushroom growing on the outside of a dead tree. Jimmy claimed that the mushroom was a plant, but Joanna said that it was not a plant, but a fungus.
In this case, what evidence BEST supports Joanna's claim?



Question 17 options:

The mushroom was a producer.




The mushroom was a autotroph.


The mushroom was a parasite.


The mushroom was a heterotroph.



Question 18 (1 point)
This is a unicellular protist called euglena. It lives in the water and swims around using the long flagella you see on one end. What do you, a complex multicellular human, have in common with the euglena?



Question 18 options:

They both can move.




Our cells are exactly the same.


Human cells move around using flagella.


The cells of multi cellular organisms must be in water also.

Question 19 (1 point)
A student performs an experiment to test the growth of bread mold. The student places four identical slices of white bread in individual plastic zip bags. Two of the slices are moistened with one pump of a spray bottle. The table describes the experiment and results.

What conclusion can be drawn from the experiment?



Question 19 options:

High moisture and low temperature encourage mold to grow.


Low moisture and high temperature encourage mold to grow.


Both low moisture and low temperature encourage mold to grow.


Both high moisture and high temperature encourage mold to grow

Question 20 (1 point)
How does the euglena differ from the paramecium?



Question 20 options:

Euglena are photosynthetic.


Paramecia use flagella to move.


Paramecia have an "eye spot" to detect light.


Euglena have both a macronucleus and a micronucleus

Question 21 (1 point)
Which organism is likely to live on the stump of a dead tree in a cool, moist, shady forest?

Question 21 options:

Diatoms


Euglena


Mushrooms


Paramecium

Question 22 (1 point)
Compare this fungus with the protist shown in the images below. How do they differ in the way they obtain nutrients?



Question 22 options:

Both organisms are autotrophs. The mushroom uses hyphae to get its nutrients and the amoeba uses the pseudopod instead.




Both organisms are consumers. The amoeba engulfs its food with it;s pseudopod, while the fungus absorbs food from the dead leaves using its hyphae.




The amoeba is a producer and obtains nutrients through photosynthesis; the fungus is a consumer and is decomposing leaf litter in the forest.



Question 23 (1 point)
Euglena, amoeba, paramecium: all one-celled protists. How does the amoeba move through its environment?

Question 23 options:

cilia


flagellum


pseudopod


hyphae

Answers

Explanation:

The answer is the amoeba. because amoeba relies on hiding by mimicking exceptible cells in a plant..

Color blindness is sex linked recessive. (Use the XX and XY with superscripts in your cross) A man who is colorblind marries a woman who is a carrier for colorblindness. What is the probability that they will have a daughter who is colorblind?

Answers

Answer:

50%

Explanation:

Using a Punnett Square, we can find the probability of colorblindness. cc x Cc would be a 50% chance of being colorblind, and a 50% chance of not

Scenario 1: A river in North Carolina has been tested and the following data is obtained:
pH = 7.1
Dissolved Oxygen = 7 mg/L
Nitrates = 8 mg/L
Phosphates = 0.03 mg/L
Biotic Index = 3.5
What is the overall quality of this river? How do you know? If the quality is low, what do you think could be happening in the environment to cause these readings?

Answers

Answer:

Good.

Explanation:

The overall quality of this river is good because all the levels is in normal range. Healthy water should have 6.5 to 8 mg/L of dissolved oxygen concentrations, normal range of phosphorus is 0.005 to 0.05 mg/L, levels of nitrate at or below 10 mg/L and the biotic index less than 3.75 is considered normal and the data shows all value of substances comes in normal range so we can say that the quality of water is good.

Which of the following is not true of an artificial reef?

Buoyant reefs can move and damage marine life on the seafloor.

Toxic materials from the artificial reefs may leach into the ocean and harm organisms.

The reef provides shelter for marine life.

Artificial reefs help ecosystems by eliminating all predators from the natural reefs.

Answers

Answer:

The 3rd one, hope this helps

Given is a strand of DNA, fill in the corresponding RNA strand and find which amino acids that strand codes for.

Answers

Answer:

The correct answer would be -

RNA - AUG GGG CCU UAC UAA

Amino acid -methionine-glycine-proline-tyrosine -stop codon

Explanation:

In the process of protein synthesis, the first process is known as transcription which involves the transcribing the mRNA strand from the DNA strand in a complementary manner. In this manner, Adenine transcribes into uracil and cytosine transcribe into guanine similarly thymine into adenine and guanine into cytosine.

Then, DNA strand - T-A-C-C-C-C-G-G-A-A-T-G-A-T-T will change into AUG GGG CCU UAC UAA and every three codes represent a triplet codon that translates into an amino acid first code called start codon and normally code for methionine (AUG) and last code for stop and does not code any amino acid.

Then, the amino acid will be - methionine-glycine-proline-tyrosine -stop codon

Mangrove swamps are coastal wetlands found only in tropical zones true or false

Answers

Answer:

According to www.epa.gov, Mangrove swamps are coastal wetlands found in tropical and subtropical regions. Therefore, I would say false bc it doesn't include subtropical

Explanation:

Purple flowers are dominant, white flowers are recessive. We are using the letter 'Na' for the flower color gene. What are all the possible allele
combinations for a purple flower?
-АА
-Аа
-аа

Answers

Answer:

.....46e72fhjw8wfjj29ajfj29zjfjqs jw9cjhq

Erythrocytes might the best of example of form equals function because they lack many organelles. What organelles are absent in erythrocytes?

Answers

Mature mammalian red blood cells lack nuclei, mitochondria and rough endoplasmic reticulum, they do not contain DNA and consequently, cannot divide. They also cannot synthesise RNA nor synthesise any new proteins, and consequently, have a limited lifespan. Mature red blood cells circulate for about 100–120 days in the body before they are removed by the spleen.

Hope this helps

What is a non-renewable resource?
A. A resource that has already been used up
B. A resource that is infinitely abundant
C. A resource generated at a rate that
is much faster than it is used
D. A resource generated at a rate that
is much slower than it is used

Answers

the answer should be “D” :)

The Mariana Flying fox is a species of bat found in the Pacific islands that plays an important role in pollination and seed dispersal, hunting and habitat destruction have contributed to a drastic population decline if this continues What would be the consequence of the extinction of the Flying Fox of the marinas.​

Answers

If the flying Fox were extinct their important roll as a pollinator & seed spreader would greatly effect the ability for new vegetation to be pollinated and grow, or keep the habitat growing. This would also effect other species that live there and need that habitat to survive.

Which of the following can result in the denaturing of an enzyme? (Choose the BEST answer choice)
Change in pH only
b. Change in temperature only
Change in both pH and temperature
d. none of the above will denature an enzyme
ASAP!!!

Answers

Answer:

change in temperature

Explanation:

The anwser is change in the tempature

Polydactyly is a trait found in cats and humans in which a person (or cat) has 6 digits per
hand or paw. The allele for polydactyly is rare but dominant. If a man who is heterozygous
for this trait marries a woman with 5 fingers, what are the chances that they will have a child
with polydactyly?

Answers

Answer:

1/2 or 50%

Explanation:

This question involves a single gene coding for the number of digits per paw in cats or humans. The allele for polydactyly i.e six digits (P) is dominant over the allele for normal number of digits i.e 5 (p).

According to this question, If a man who is heterozygous (Pp) for this trait marries a woman with 5 fingers (pp), the following gametes will be produced by each parent:

Pp : P and p

pp : p and p

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

Pp, Pp, pp and pp

The offsprings with genotype Pp will have polydactyl, hence, the chances that they will have a child with polydactyly is 1/2 or 50%.

A stimulus motive is learned.
True
False

Answers

Answer:

The answer is False

Explanation:

I hope this helps you

12. What is the function of the vacuole? *
(1 Point)
A. sac that stores water, nutrients and waste products
B. sac filled with digestive chemicals
C. jelly-like substance within the plasma membrane
D. stack of membranes that package materials

Answers

The answer is A: sac that stores water, nutrients, and waste products :)

The vacuoles are the structures found inside the cells that store water, nutrients as well as waste products. So the correct option is option A.

The vacuole plays a vital role in many cells. Mature cells of all land plants, most fungi, and algae (with the exception of prokaryotes) contain vacuoles. On the other hand, animal cells and immature plant cells (as well as some highly immature plant cells (stone cells) contain no vacuoles.

These vacuoles store the essential nutrients and water that a cell needs to survive. They also contain the waste of the cell and protect it from contamination.

To learn more about vacuoles, refer to the link:

https://brainly.com/question/13948086

#SPJ6

The analysis of rRNA gene sequences to compare evolutionary relationships is known as
O molecular phylogenetic analysis.
O RNA sequence comparison.
O molecular evolutionary analysis.
O molecular clock analysis.

Answers

The RNA sequence comparison

How does this quote reflect the influence of Enlightenment ideas on the Founding Fathers?

Answers

Answer: The United Nations promotes universal human rights.

It shows support for individual liberties.

Explanation:

Answer:

they reflected because they supported individual liberties

Explanation:

none

Rabbits reproduce in the spring. How do you think a period of cold springs will affect the rabbit population?

Answers

Answer: The population would decrease.

Explanation: They need warm temperatures

what is the structure of purines and pyrimidines​

Answers

Explanation:

purines-Double carbon-nitrogen ring with four nitrogen atoms

pyrimidines-Single carbon-nitrogen ring with two nitrogen atoms

Does cellular respiration happen in the chloroplast?

Answers

Yes photosynthesis happens in the chloroplast. Photosynthesis occurs in the chloroplasts, whereas cellular respiration occurs in the mitochondria. Photosynthesis makes glucose and oxygen, which are then used as the starting products for cellular respiration.
Please give brainliest

Does anyone know what the 4.06 module exam password and science is? I’m too scared to ask my teacher :-(

Answers

this app is used world wide , maybe try asking a classmate

Assuming the death rate remains constant, how many cubs must be born each year
to reach the tiger’s MVP of 5,000 tigers in two generations, or 25 years?

Answers

Answer:

what do you mean i don't understand

1 point
Read the question and select the correct answer.
1
The diagram shows some cells.
cilia
LUNACO
cytoplasm
nucleus
Where are these cells found?
A alimentary canal
B blood
C bronchus
D plant roots
Ο Α
OB
Ос
OD
Moy
Page 3 of 8

Answers

Explanation:

A= alimentary canal have all of this cells

Please help it’s due soon...

Answers

Answer:

75%

Explanation:

what is the process of one cell becoming two cells

B. Not alive
C. Mitosis
D. 46 total
E. Nucleus

Answers

Answer:

Mitosis

Explanation:

you prob learned this, why u come here

Answer:

Mitosis

Explanation:

When cells become more cells it is called mitosis. When they do this they also go through a process within mitosis that can be know as PMAT which is: Prophase, metaphase, anaphase and telophase.

Help me plz asap 2-4 plz

Answers

Answer:

1.mRNA- ATGAAAAGGTCCGTGGGAACTAAACAACACTAA

2.MRNA- ATGAAAACGGTCCGTGGGAACTAAACAACACTAA

3. ??

4. It will affect the protein so the leg wont have enough protein or have too much.

Explanation:

What is a potential risk of a long-term stationary front?

A. tornadoes

B. flooding

C. hurricanes

D. drought

Answers

the answer is B. flooding

Answer:

B

Explanation:

Other Questions
An antecedent is a word or person towhich a pronoun is referring. Who isJefferson referring to when he says,their, them, and they?" Evaluate when a =3 b= 4.5 and h = 6 In MNO, the measure of O=90, the measure of M=11, and NO = 80 feet. Find the length of OM to the nearest tenth of a foot. Please show work. The Clemson Company reported the following results last year for the manufacture and sale of one of its products known as a Tam. Sales (6,500 Tams at $130 each) $845,000 Variable cost of sales 390,000 Variable distribution costs 65,000 Fixed advertising expense 275,000 Salary of product line manager 25,000 Fixed manufacturing overhead 145,000 Net loss ($55,000) Clemson Company is trying to determine whether or not to discontinue the manufacture and sale of Tams. The operating results reported above for last year are expected to continue in the foreseeable future if the product is not dropped. The fixed manufacturing overhead represents the costs of production facilities and equipment that the Tam product shares with other products. Assume that discontinuing the Tam product would result in a $120,000 increase in the contribution margin of other product lines. Required:How many Tams would have to be sold next year for the company to be as well off as if it just dropped the line and enjoyed the increase in contribution margin from other products? For several years,researchers have atempted to produce AB artificial blood for transfusions. Artificial blood would most likely to be safer and more readily available than human blood.while the artificial blood might not have all the characteristic of a human blood, it would be useful on the battlefield and in emergency situations. which characteristics of normal blood must artificial blood have to be useful and which would probably be too difficult to produce . As a result of mitosis, the cells of a multicellular organism share which of these properties? Select two correct answers. Depression appears to occur more in men than in women. Please select the best answer from the choices provided T F 30. Based on the cartoon, explain how the audience affects the way Daniel Fitzpatrick presents his ideas. PLS HELP The rest is lost largely through metabolic processes as heat.How can I word that sentence differently? pls help Write 3 well paragraphs on the following: what were the reasons the bomb should have been used on Japan?what were the reasons the bomb should not have been used on Japan? Should the atomic bomb have been used on Japan? Why or why not? Please helppppppp !!Question 11 of 17What is one way that Jim Crow laws changed the rights of African Americansafter the Reconstruction?A. They granted African Americans a free education.B. They kept African Americans from being able to vote.C. They put a minimum wage in place for African Americans.D. They allowed African Americans to purchase land at a discountedrate.SUBMIT HELP ILL GIVE BRAINLIEST Mercantilism was one of the earliestdriving forcesA. for the settlement of colonies in AmericaB. for war in the coloniesC. to help colonies join together 3/5 + 1/4 = what is it Mutations rII1 and rII2 are known to fall into the rIIA and rIIB cistrons (genes) respectively. Cells of E. coli B are infected simultaneously with phage strains rII1 and rII2 at a high moi. The progeny phage are collected and used to infect cells of E. coli K. This infection is also carried out at a high m.o.i., and the resulting phage are collected. These progeny are diluted and plated on both E. coli B and E. coli K. Do you expect more plaques on strain B, on strain K, an equal amount on both or is it impossible to tell? A. E. coli B B. E. coli K C. Equal on both D. Can't tell What is the authors first claim ? ( I-Ready ) The circle below has center H. Suppose that =mFHG64. Find the following. which level of the food pyramid should not always consumed SOMEONE HELP Jeffery used a stream table as a model to show how water erodes soil. As he sprayed water on the stream table, some of the soil was carried to the end of the table.Jeffery used his stream table to model an interaction between which two spheres? A. geosphere and biosphere B. biosphere and atmosphere C. hydrosphere and atmosphere D. geosphere and hydrosphere Write an equation for the nth term of the arithmetic sequence. Then find a10.3,6,9,12,...an= a10=