Which of the following statements best describes the replication of DNA?

a. The double helix unzips the hydrogen bonds between bases and like bases pair up (G with G, C with C, etc.)

b. The double helix unzips at the phosphate bonds and new nucleotides pair with the appropriate sugars.

c. The double helix unzips the hydrogen bonds between bases and new DNA nucleotides pair with the complementary bases in the old strands.

d. The double helix unzips and RNA forms base pairs with the complimentary strand of DNA.

Answer:

By hydrogen bonds between nucleotide bases

Explanation:

A DNA molecule is a double-stranded molecule that is informing one structure two strands of nucleotide are involved.

The double-stranded molecule backbone is composed of the phosphate and sugar group and the inside of the backbone are presents the nitrogenous bases. The nitrogenous bases are of four types which are: adenine, cytosine, guanine, and thymine.

These nitrogenous bases are attached according to the Chargaff rule that is adenine binds thymine and cytosine binds guanine. These bases bind with the help of the hydrogen bond as 2 hydrogens participate between adenine and thymine and 3 hydrogens participate between cytosine and guanine.

Thus, hydrogen bonds between nucleotide bases is correct.

helppp can I have a specific answer pleasee

What happens to a species when it becomes extinct? A. A few members adapt to a new environment. B. Most members move to a new environment. C. All members evolve into a new species. D. No members live to reproduce.

‍♀️ please help this is confusing

Which of the following is needed for photosynthesis to occur?
A.
Radiant energy from the Sun, which transforms into chemical energy
B.
Minerals in the soil, which transform into chemical energy
C.
Oxygen in the air, which transforms into electrical energy
D.
Sugar in the plant, which transforms into light energy

Which compound would most likely be found in all living organisms?
cellulose
ethanol
insulin
water

Which of the following is least likely to increase the rate of evolution?

ILL GIVE BRAINLIEST (RIGHT ANSWER ONLY)
Students in Ms. King's science class are researching the history of the cell theory and will write a blog to show what they have learned. Which of the following is the best choice for the introductory sentence?


A. A scientific theory, like cell theory, does not change.


B. A hypothesis, such as one about cells, usually becomes a theory.


C. Scientific theories, like those written about cells, are not as important as scientific laws.


D. Scientific theories, such as cell theory, are based on well-supported observations of nature.

Stem cells are -



cells that can only be found in embryos


cells that never go through division


undifferentiated cells with no specific job


cells that grow uncontrollably

Climate changes and loss of biodiversity in Yellow Stone National Park are the
result of *
Ecological Footprint
Global Warming
Carrying Capacity
Ozone Layer

which two atoms form an ionic bond
A. two sodium atoms
B. sodium and bromine
C. fluorine and chlorine
D. two oxygen atoms​

Gymnosperm ovules are fertilized twice, called double fertilization.



Group of answer choices

True

False

how might changes in abiotic factors in an area lead to speciation

write short note on adaptations​

Which of the following would most likely represent the types of individuals found in one of the species resulting from shape becoming a prezygotic isolating mechanism in the initial population represented in Figure 1?

PLEASE HELP.


i only have until 3:30

ok so, The question is:

how does building a road, affect Logging companies? please make a SHORT answer not a LONG one

Analyze the Punnett square below and determine the the genotypic ratio. Axial flowers are dominant

8. A student looks at the dihybrid cross shown above and comes to the
conclusion that it is not possible for a tall pea plant with purple flowers to
be produced in this cross. Is the student correct?

10. Three observers made the diagrams above to show what they think the Moon looks like when it is
seen from above (top view), In these diagrams, the sunlight is coming from the left, as shown by the
arrows. Which diagram is accurate and why?

Helppppppppppppppppp

it Due today please help​

Exponential growth happens when a population grows at a decreasing rate.
O True
O False

Which substance do biochemists often search for in fossils to help better understand the evolutionary relationships of the organism that formed the fossil?

A.
DNA

B.
iron

C.
ATP

D.
oxygen

What is Chargoffs Rule?

A T and C G = ________ %

Adenine with Thymine and Cytosine with Guanine are known as the nitrogen ____ in DNA.

wer the
Where is the energy of the
roller coaster cart entirely
potential?
A. When it moves up the hill at location A
B. When it stops for a brief moment at
location B
C. When it is traveling down the hill at
location C

the Sting of bees contains which acid ​

help meeeeeeeeeeeeeeeeee​

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they asked for 20 characters so I’m trying here

Besides plants, list 2 other organisms that carry out photosynthesis.
HELP PLEASE!!!!

??? help ??? please anyone