1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Umnica [9.8K]
3 years ago
6

Which of the following statements about base pairing in DNA is incorrect?

Biology
1 answer:
almond37 [142]3 years ago
8 0

Answer:

Adenine binds to guanine.

Explanation:

Rules of the base pairing are:  

A with T

Purine base, adenine (A) pairs with the pyrimidine base, thymine (T).

C with G

Pyrimidine base, cytosine (C) pairs with purine base, guanine (G).

<u>(Option A is correct). </u>

<u>(Option B is incorrect). </u>

Nitrogenous bases are positioned in the inside helix structure like the rungs of a staircase due to hydrophobic effect and are stabilized by hydrogen bonding.  

<u>(Option C and D is correct). </u>

You might be interested in
Help me with the answers to my science homework please
Charra [1.4K]
I need the questions
3 0
4 years ago
A woman has a baby that is type B blood and she has type O blood. There are two men that could be the father, one has type A and
Strike441 [17]

Answer:

the guy who is type O

Explanation:

using a punnet square you can come up with 4 seperate possiblitys for the baby's blood type. We don't know any of their recessive traits tho so im pretty sure its O. i could be wrong tho!

4 0
3 years ago
The __________ valve prevents backward flow of blood into the left ventricle.
GuDViN [60]
The aortic valve prevents backward flow of blood into the left ventricle.
4 0
3 years ago
Rank the following levels of chromatin compaction in eukaryotes from the least compact to the most compact.
Scilla [17]

Answer:

a. Naked dna

f. nucleosome

e. solenoid

g. loop domain

d. chromatid

c. chromosomes

b. metaphase

Explanation:

The naked DNA consists of the DNA molecule not associated with proteins.

A nucleosome is an octamer of histone proteins (i.e., dimers of H2A, H2B, H3, H4) associated with DNA.

A solenoid is a chromatin fiber consisting of 30 nanometers (nm), it represents the secondary structure of the chromatin.

The chromatin fibers are organized into loops (300 nm) that represent the tertiary structure of the chromatin. These loops enable to package chromosome segments consisting of about 100 kilobases (kb).

The sister chromatids are two identical DNA-based structures that remain joined together by the centromere to form a single chromosome (700 nm).

4 0
3 years ago
Explain the effect that hypoglycemia has at the cellular level, specifically on cellular respiration.
Fofino [41]
When a person is diagnosed of hypoglycemia, it indicates that a person has a low (below normal) blood glucose or low blood sugar in the blood. When a person is hypoglycemic, cellular respiration cannot take place. The oxygen that normally combines with glucose, which are supposedly converted to energy (ATP, adenosine triphosphate) during cellular respiration, accumulates in the bloodstream resulting to an increase pH and inactive enzymes -- essentials of cellular respiration.
4 0
3 years ago
Other questions:
  • The _____ produces secondary phloem and xylem tissue, adding to a tree's girth.
    13·1 answer
  • Which plants form seeds in structures
    10·1 answer
  • Which of these cells is likely to NOT continue to divide?
    9·1 answer
  • Which is the most common threat to the human body from an invading virus?
    13·1 answer
  • Wind shear can result in the formation of a _______.
    14·2 answers
  • Which are examples of steroids?
    9·1 answer
  • Is Monkeys have a prehensile tail that allows them to grab and hold onto tree branches a structure or behavior adaptations
    12·1 answer
  • Which structure is included in the discussion of the urinary system even though it is part of the circulatory system?
    11·1 answer
  • ______ transport moves nutrients from low to high
    7·1 answer
  • Pls help I have to do this now
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!