If a DNA molecule has 24% adenine, what is the percentage of guanine in the same DNA molecule?
A. 52%
B. 24 %
C. 48 %
D. 26%
I need help plzz
Answer:
26%
Explanation:
Adenine pairs with thymine.
Guanine pairs with cytosine.
If 24% of the DNA molecule is adenine, that means that there is 24% thymine. This is because they pair together so they have to be equal. That is 48% of the DNA molecule. To find the percentage of guanine, we need to minus 48% from the total 100%.
100 - 48 = 52
Then divide by 2 because you have guanine AND cytosine.
52/2 = 26
Therefore, your final answer is 26% of guanine is in the DNA molecule.
I hope this helps!!
- Kay :)
When an atom gains or loses electrons, an ion is formed
Answer:true
Explanation:sounds true
Which sequence best describes apoptosis at the G1 checkpoint?
Answer:
The correct answer is "Cdk/cyclin complex is inhibited→ p53 levels rise → p21 production increase".
Explanation:
The missing options of this question are:
A. p53 levels rise → p21 production increase → Cdk/cyclin complex is inhibited
B. p21 production increase → Cdk/cyclin complex is inhibited→ p53 levels rise
C. Cdk/cyclin complex is inhibited→ p21 production increase → p53 levels rise
D. Cdk/cyclin complex is inhibited→ p53 levels rise → p21 production increase
E. p53 levels rise → Cdk/cyclin complex is inhibited→ p21 production increase
The correct answer is option D. "Cdk/cyclin complex is inhibited→ p53 levels rise → p21 production increase".
Apoptosis is a process at which the cells undergo a programmed death. This mechanisms happens at G1 checkpoint first by the inhibition of Cdk/cyclin complex which causes p53 levels to rise and later, an increment of p21 production. First, a cyclin-dependent kinase inhibitor regulates the inhibition of the Cdk/cyclin complex. This causes p53 levels to rise, since p53 is a direct downstream kinase substrate for CDK. Subsequently, p21 production increase as well since p21 is a inhibitor of cyclin-dependent kinases.
What prevents acetylcholine from accumulating in the neuromuscular junction and causing a sustained contraction in a normal individual
Answer:
Botulinum toxin
Explanation:
Botulinum toxin is known to hinder the release of acetylcholine into the synaptic cleft at the neuromuscular junction.
This leads to acetylcholine not attaching to its receptors and eventually leading to the inability to have muscle contractions.
Hence, in this case, the correct answer is Botulinum toxin prevents acetylcholine from accumulating in the neuromuscular junction in individuals.
Based on the diagram below, at which point is the most oxygen being produced? Oxygen in Plants and Time of Day с Oxygen Production Rate B D Dawn Dusk Dawn
A. Point A
B. Point d
c. Point B
D. Point C
doing a aslam answers 70 questions and gets 34 correct answers Imran answers 85 questions and gets 61 correct answers give their scores in percentages and find out who is better at quizzes
Answer:
See the answer below
Explanation:
Aslam answered 34 correctly out of 70;
Percentage score = 34/70 x 100%
= 48.57%
Imran answered 61 correctly out of 85;
Percentage score = 61/85 x 100%
= 71.76%
The percentage score of Imran is 71.76 while that of Aslam is 48.57, hence, Imran is better than Aslam when it comes to quizzes.
A unicellular organism with free floating DNA and a cell wall living in the Cape Fear River would be classified into which kingdom
Answer:
The Kingdom Plantae in the Domain Eukarya
Explanation:
I majored in Biology
What is the postsynaptic membrane?
Answer:
the membrane that receives a signal from the presynaptic cell
Explanation:
Why is this only 3 stars its right.. the other answer is copied from g00gle
What effect does continual mowing have on the ecology field
Answer: Mowing increases the likelihood of nonnative species displacing native species.
Explanation:
Answer:
Mowing increases the likelihood of nonnative species displacing native species.
3. Rotifers are found on every continent except for which one?
Australia
Africa
Antarctica
Asia
Answer:
Antarctica
Explanation:
Rotifers are multicellular organisms of various shapes. Their length is from 0.1 to 0.5 mm. The process of feeding in rotators is very interesting due to the presence of the so-called "hunting apparatus".
The device consists of cilia, by the movement of which the rotators create a stream of water and thus attract the microorganisms they feed on.
Answer:
Antarctica
Explanation:
that's the correct answer
Cancer is:
unregulated cell division in the body.
regulated cell division in the body.
a lineage of genetically identical individuals or cells.
a mass of cells that does not serve a function in the body.

Blood cells are
in shape because they lack a nucleus.
Explanation:
blood cells are BICONCAVE DISK in shaped because they lack nucleus
why does air pressure decrease with increasing altitude within earth's atmosphere
Answer:
At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. ... Since most of the atmosphere's molecules are held close to the earth's surface by the force of gravity, air pressure decreases rapidly at first, then more slowly at higher levels.
Explanation:
Heavy rain can cause _____.
Answer:
hey i think the answer is damage
Explanation:
an organelle that serves as the transport system
Answer:
endoplasmic reticulum (ER)
Explanation:
The endoplasmic reticulum (ER) is an organelle that helps make and transport proteins and lipids.
Younger fossils are often morphologically different from older fossils in a lineage. How do paleontologists think the morphological transition happened
Answer:
Paleontologists thinks that the younger fossils are a species that underwent an-agenesis, gradually evolving a new morphology or/and the younger fossils are a new species that branched off the older one, rapidly evolving a new morphology.
Explanation:
Fossils are the safeguarded remains or hints of creatures, plants, and different life forms from an earlier time. Fossils range in age from 10,000 to 3.48 billion years of age. The perception that specific fossils were related with certain stone layers drove nineteenth century geologists to perceive a land timescale. Like surviving life forms, fossils differ in size from minuscule, similar to single-celled microscopic organisms, to monstrous, similar to dinosaurs and trees.
Fossils give strong proof that living beings from the past are not equivalent to those discovered today; fossils show a movement of advancement. Fossils, alongside the similar life systems of present-day life forms, comprise the morphological, or anatomical, record.
By contrasting the life structures of both present day and terminated species, paleontologists can deduce the ancestries of those species. This methodology is best for life forms that had hard body parts, for example, shells, bones or teeth. The subsequent fossil record recounts the account of the past and shows the development of structure more than a great many years.
What is the difference between a primary and secondary reinforcer?
Answer:
Primary reinforcer is innate, secondary reinforcer is a stimulus
Explanation:
While a primary reinforcer is innate, a secondary reinforcer is a stimulus that becomes reinforcing after being paired with a primary reinforcer, such as praise, treats, or money.
Hope this helps!
Brain-List?
In fruit flies, curved wings are recessive to straight wings, and ebony body is recessive to gray body. A cross was made between true-breeding flies with curved wings and gray bodies to flies with true-breeding straight wings and ebony bodies. The F1 offspring were then mated to flies with curved wings and ebony bodies to produce an F2 generation.
1. Diagram the genotypes of this cross, starting with the parental generation and ending with the F2 generation.
2. What are the predicted phenotypic ratios of this F2 generation?
3. Suppose the following data were obtained for this F2 generation:
114 curved wings, ebony body
105 curved wings, gray body
111 straight wings, gray body
114 straight wings, ebony body
Conduct a chi-square analysis to determine if the experimental data are consistent with the expected outcome based on Mendel's laws.
Answer:
Population of F2 generation will be formed on 9:3:3:1 ratio.
Explanation:
The predicted phenotypic ratios of F2 generation is 9:3:3:1. Ratio 9 represents straight wings, gray body which are dominant allele, ratio 3 represents hybrid flies having curved wings, gray body, ratio 3 represents hybrid flies having curved wings, ebony body and ratio 1 indicates flies with curved wings, ebony body. The population of F2 generation will be formed on the above ratio.
The study of genes is called genetics.
The correct answer is Population of the F2 generation will be formed on the 9:3:3:1 ratio.
What is a dihybrid cross?When more than two characters are crossed to form a new breed is called a dihybrid cross.
The predicted phenotypic ratio of F2 generation is 9:3:3:1. Ratio 9 represents straight wings, gray bodies which are dominant allele, ratio 3 represents hybrid flies having curved wings, gray body, ratio 3 represents hybrid flies having curved wings, ebony body and ratio 1 indicates flies with curved wings, ebony body. The population of the F2 generation will be formed on the above ratio.
Hence, the correct answer to the question is mentioned above.
For more information about the genes, refer to the link:-
https://brainly.com/question/14688752
Heredity information is stored inside the?
Answer:
the nucleus
Explanation:
the nucleus has chromosomes that contain many genes
hope this helps, pls mark brainliest :D
We get energy from a variety of sources. Which one source would be responsible for emitting the most direct pollution?
es )
A)
Wind
B)
Solar
Biomass
D)
Fossil Fuels
The NADH and FADH2 used by the electron transport chain are normally produced in the mitochondria; however. Select one:
a. NADH is also produced during glycolysis in the cytoplasm.
b. NADH is only produced and used in the mitochondria; FADH2 can be used elsewhere.
c. FADH2 is also produced by the citric acid cycle; NADH is not.
d. FADH2 produced in the mitochondria has more energy than does NADH.
Answer:
The correct answer is option A (NADH is also produced during glycolysis in the cytoplasm).
Explanation:
NADH is NAD + hydrogen, which is among the list of chemicals that produce energy for the body. It's among the vitamins that act as fuel for electrons during cellular respiration. NADH makes more ATP than FADH2 producing water during the electron transport chain.
During the electron transport chain, which is a step in aerobic respiration, both NADH and FADH2 supplies the much-needed H for the formation of ATP.
Glycolysis, which leads to the formation of ATP occurs in the cytoplasm gives energy for metabolism in the cells after is being broken down produces NADH.
need help asap will give brainlist
Answer: the correct answer is the one you have clicked, D
Explanation:
Answer:
D.
Explanation:
An organism that converts sunlight to make its own food is called a(n) Choose all that apply.
producer.
producer.
chemotroph.
chemotroph.
autotroph.
autotroph.
heterotroph.
heterotroph.
Answer:what he said^
how many chromosomes are normally found in human body cells?
Answer:
46
Explanation:
Answer:
i believe is 46 if not 23.
In what environment would ice wedging occur?
Answer:Ice wedging is common where water goes above and below its freezing point (Figure below). This can happen in winter in the mid-latitudes or in colder climates in summer.
Explanation:
CAN YOU MAKE ME BRAINLIEST
4. When an earthquake occurs, where would shaking be greater? Near the epicenter or away
from the epicenter?
Answer:
The point at the Earth's surface directly above the focus is called the epicenter of the earthquake. At the epicenter, the strongest shaking occurs during an earthquake. Sometimes the ground surface breaks along the fault. Sometimes the movement is deep underground and the surface does not break.Apr
Explanation:
When an earthquake occurs greater shaking appears near the epicenter.
• When two blocks of the Earth suddenly slip past one another the phenomenon that takes place is termed as an earthquake.
• The earthquake occurs when large blocks of the Earth's crust suddenly move past one another at a fault.
• Earthquakes releases energy which results in the shaking of the ground surface.
• The location within the Earth where the beginning of Earthquake takes place is known as the hypocenter or focus.
• The point directly above the focus at the surface of the Earth is known as the epicenter of the Earthquake.
• At the epicenter and close to it, strongest shaking takes place when an earthquake occurs.
• The severity of the earthquake can be expressed in terms of both magnitude and intensity.
• Intensity is based on the observed influences of ground shaking on buildings, people, and natural things. It changes from place to place within the region of the earthquake based on the location of the observer with respect to the epicenter of the earthquake.
Thus, near the epicenter greater shaking will be observed when earthquake takes place.
To know more about:
https://brainly.com/question/14156406
Gizmo River Erosion Answer Key
Can someone please give me the answer key :( Ill give brainliest
Answer:
sure
Explanation:
ok
why do concentration gradients exist?
1. These structures are enclosed compartments which are filled with water containing inorganic and organic molecules including enzymes in solution.
Answer:
Vacuoles
Explanation:
Vacuoles have enclosed compartments which are filled with water containing inorganic and organic molecules including enzymes in solution.
Is egg nog technically a milk?
Answer:
Kinda
Explanation:
Traditionally, eggnog recipes do indeed use eggs, as well as sugar, cream, milk, and spices such as nutmeg and a little alcohol if you choose too