Answer:
It is A
Explanation:
A
define the term gene mutation
Answer:
gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes
Explanation:
need thanks and make me brainiest if it helps you
Answer:
Gene mutation is a genetic change in base sequences of DNA.
How do the structures of RNA and DNA differ? Only RNA, and not DNA, has a primary structure. Adenine pairs with thymine in DNA, while adenine pairs with uracil in RNA. DNA contains the sugar ribose, while RNA contains the sugar deoxyribose. The sugar-phosphate backbone of DNA is formed by phosphodiester linkages, while the sugar-phosphate backbone of RNA is formed by peptide bonds. Guanine pairs with cytosine in DNA, while guanine pairs with adenine in RNA.
Answer:
RNA_ single stranded, ribose sugar
DNA_ double stranded, deoxyribose sugar
write the complementary bases of the strand below according to the base pair rule. ATC CAG TAG GAC
Answer:
ATC CAG TAG GAC
R. TAG GTC ATC CTG
Explanation: According to the laws of Chargaff
T is "the complement" of A
C is "the complement" of G
and vice versa
Adenine(A) is complementary to thymine (T), and cytosine (C) is complementary to guanine (G). The complementary base of the DNA strand ATC CAG TAG GAC is TAG GTC ATC CTG.
What is the Chargaff Rule?
The Chargaff rule explains DNA base pairing. In DNA, the total number of purines is the same as the number of pyrimidines. A+G = C+T. Adenine (A) and guanine (G) are purines. Cytosine (C) and thymine (T) are pyrimidines. A purine makes a complementary base pair with a pyrimidine.
In normal conditions, adenine (A) makes a complementary bond with thymine (T), and guanine (G) makes a complementary bond with cytosine (C). Two hydrogen bonds are formed between adenine and thymine. Guanine and cytosine have three hydrogen bonds. Both strands of DNA are connected by hydrogen bonds among these nitrogenous bases. This gives stability to DNA, which remains in its double helical form.
Hence, the correct base pairing of ATC CAG TAG GAC is TAG GTC ATC CTG.
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What organisms are affected by dead zones in the Gulf of Mexico
Answer:
Dead zones result from these impacts, which include algal blooms and hypoxia. Phosphorous, nitrogen, and other nutrients increase the productivity or fertility of marine ecosystems. Organisms such as phytoplankton, algae, and seaweeds will grow quickly and excessively on the water's surface.
Hope this helps!
Low oxygen near the Gulf's bottom kills most marine life. Fish, shrimp, and crabs swim away from low oxygen, but other species are stressed or killed. Summertime brings the Gulf of Mexico dead zone.
What is a dead zone?The most severe impact of eutrophication is dead zones. Massive algal blooms are brought on by this abrupt surge in previously scarce nutrients. These "red tides" or "harmful algal blooms" can result in fish extinctions, human disease from shellfish poisoning, and the extinction of shorebirds and marine mammals.
Because of the consequently low oxygen levels near the Gulf's bottom, most marine species cannot exist there. Fish, shrimp, and crabs frequently leave the region by swimming away, but creatures that cannot swim or leave are distressed or killed by the low oxygen. Every summer, there is a dead zone in the Gulf of Mexico.
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phosphodiesterases 3 and 4 differentially regulate the funny current, if, in mouse sinoatrial node myocytes
Sinoatrial node myocytes' cAMP (3′,5′-cyclic adenosine monophosphate) signaling is necessary for cardiac pace making both at rest and during the sympathetic fight-or-flight response (SAMs).
The cAMP-sensitive effectors responsible for pace making in SAMs include the cardiac "funny current" (If). cyclic nucleotide-sensitive, hyperpolarization-activated (HCN) channels are responsible for its production. cAMP either binds to the HCN channels directly or activates the cAMP-dependent protein kinase (PKA), phosphorylating them, to enhance the voltage-dependent gating of the channels. The mechanism limiting cAMP signaling to a PKA-dependent route is unclear, however PKA activity is necessary for signaling between adrenergic receptors (ARs) and HCN channels in SAMs. In different kinds of cardiomyocytes, PDEs hydrolyze cAMP and create cAMP signaling domains.
Here, we look at the function of PDEs in the control of If in SAMs. When PDE and PKA inhibitors were present or not, as well as before and after AR stimulation, it was detected in whole-cell voltage-clamp assays from acutely isolated mouse SAMs. The midpoint activation voltage (V1/2) of If at rest was depolarized by general PDE inhibition, which also eliminated the need for PKA in AR-to-HCN signaling.
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when do members of each species compete regularly for resources
What do a banana and a chicken have in common
Answer:
They are both editable
Explanation:
you eat a delicious Chinese take out dinner. your body stores the fat from your meal in the form of. LOOK AT THE ATTACHMENT
he principal role for simple sugars in living organisms is to . multiple choice form cell membranes serve as a form of long-term energy storage create genetic codes create cellular energy
The principal role of simple sugars (i.e. simple carbohydrates) in living organisms is to create cellular energy.
What are simple carbohydrates?Simple carbohydrates (e.g. glucose, fructose) are a special class of macromolecules composed of only one monosaccharide unit, which serve as a source of energy for cellular respiration.
In conclusion, the principal role of simple sugars (i.e. simple carbohydrates) in living organisms is to create cellular energy.
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all of the following contain only glucose exept
Answer:
I didn't understood sorryExplanation:
sorry
The movement of waves in the middle of the ocean is normally
static
vertical
circular
horizontal
Answer:
Vertical
Explanation:
Since we are talking about movement, and the ocean can't be static due to many things happening around and inside it can't be static.
It is not circular and not horizontal. It is vertical. The movement of waves is vertical and this is because waves don't move up and down but vertically since wind is the usual maker of waves in the middle of the ocean.
Please answer quickly!
Answer:
BB
Explanation:
Sorry if I'm wrong Lol..
What is an example of "facilitated diffusion"? PLEASE HELP QUICK!!
A. a special transport protein speeds up the movement of glucose into a cell
B. oxygen diffuses across a cell membrane
C. a drop of food coloring spreads out in water
D. water moves out of a wilted plant
Answer:
B I guess is the answer for the question
What information can the positive and negative numbers on a number line provide?
Answer:
It can provide if a number is greater than zero or less than zero
Explanation:
gated ion channels gated ion channels are found only on vesicles. open and close in response to a stimulus. move molecules against an electrochemical gradient. require atp hydrolysis.
Gated ion channels are open and close in response to a stimulus.
What is a stimulus?A stimulus in physiology is a perceptible alteration in the physical or chemical composition of an organism's internal or external environment. Sensitivity refers to an organism's or organ's capacity to recognize external stimuli and respond appropriately (excitability). As with touch receptors in the skin or light receptors in the eyes, sensory receptors can pick up information from both within and outside the body. Chemoreceptors and mechanoreceptors are examples of internal sensory receptors. A stimulus can trigger a response via stimulus transduction when it is recognized by a sensory receptor.
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List some regions where physical weathering caused by water is common?Explain why
HELO AGAIN PLS
Answer :Physical weathering happens especially in places places where there is little soil and few plants grow, such as in mountain regions and hot deserts.
Explanation:
Leaves of green plants contain openings known as stomata. These are opened and closed by specialized cells that allow gases to be exchanged between the leaf and the outside environment. Which phrase best represents the flow of gases into and out of a leaf through stomata on a sunny day?
a oxygen moves in; nitrogen moves out
b carbon dioxide moves in; oxygen moves out
c carbon dioxide and oxygen move in; ozone moves out
d water vapor and ozone move in; carbon dioxide moves out
Answer:
b carbon dioxide moves in; oxygen moves out.
Explanation:
The green leaves of the plant convert the available solar energy into chemical energy by the process of photosynthesis which s responsible for giving green pigment to the leaves. The stomata present on the leaves are used for exchanging gases, they give out oxygen and take or absorb carbon gas. As carbon dioxide is exalted by animals and is taken by plants.anybody can help me with this ?
- 40 points .
Answer:
Explanation:
Endangered species because if the poachers keep hunting for its horns they may be extinct in few years
Give an example of a single trait that is affected by more than one gene.
Answer:
Sometimes a single gene may affect more than one trait. This is called pleiotropy. An example is the gene that codes for the main protein in collagen, a substance that helps form bones. The gene for this protein also affects the ears and eyes.
Explanation:
Define decision making and provide two strategies that one may use to make decisions.
Answer:
Decision making is the process of evaluating alternatives and making choices among them. Two strategies that one may use to make decisions is the additive strategy and the elimination-by-aspects strategy. The additive strategy involves creating a list of attributes that affect the decision and then rating each alternative based on each attribute. This strategy is often used for simple choices. The elimination-by-aspects strategy eliminates alternatives based on their attributes and evaluates each attribute in order of importance. This strategy is often used for complex choices
Explanation:
please help, it’s due at 3:00 :)
Answer:Gene
Explanation:
The _______ is the part in the cell that works to produce lots of energy or ______ for our bodies.
A. Cell Membrane, Glucose
B. Ribosomes, Proteins
C. Mitochondria, ATP
D. Ribosomes, ATP
Answer: C. Mitochondria, ATP
Explanation:
The mitochondria is known as the powerhouse of the cell, and it produces ATP (energy).
Analyze “Diagram B." Of the four answers provided, which answer clearly interprets this graph?
A. The wavelengths of sunlight between 100nm and 700mm aie the wavolengths thit are absorted by chirophyll and that drive photosynthesis
B. The wavelengths of sunlight between 400nm and 700nm are thin wavelengiis at a abnarted by the mitochondria and that drive photosynthesis
C. The wavelengths of sunlight between 400nm and 700mm aro thi wavolungths that are absorted Iy the mitochendria and that drive cellular respiration
D. The wavelengthN of night between 400nim and 700nm are the wavelengths that are lnortet by chlorophyll and that drive cellular respiration
As per diagram B of the four answers the wavelength. The wavelength are given in the visible bands and range form 400 to 700 nm. As per the absorption efficiency the band B has larger capacity than the band A.
Hence the wavelength of sunlight between the 400nm and the 7000nm ae the wavelengths that are absorbed by the and mitochondria that drive the process of cellular respiration.Hence option C is correct.
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What structural property of dna gave watson and crick the idea that dna replication was likely to proceed via a semiconservative mechanism?.
The complementary nature of base pairing between the two strands of DNA is the structural property of DNA that gave Watson and Crick the idea that DNA replication was likely to proceed via a semiconservative mechanism.
DNA is a double-helix structure made from nucleotides. The nucleotides of the DNA are made from nitrogenous bases, sugar, and a phosphate group.
The nucleotide bases which is complementary to each other form a ladder by which the structure of the DNA is maintained. Adenine pairs with Thymine and Cytosine pairs with Guanine of the other strand.
Each strand of the DNA acts as a template to form in a semi-conservative replication model.
It was due to the complementary nature of the DNA that Watson and Crick proposed the semiconservative model for DNA replication. Each DNA strand acts as a template through which a new strand is made that is complementary to it.
Although a part of your question is missing, you might be referring to this question:
What structural property of DNA gave Watson and Crick the idea that DNA replication was likely to proceed via a semiconservative mechanism?
A) The nitrogen content in the bases
B) The complementary nature of base pairing between the two strands
C) The repeating nature of the sugar-phosphate backbone
D) The helical shape of the double strand
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i need to know what lights to mix together to get dark gray????
Answer:
A pure gray is a combination of white and black. However, you can get a grayish-brown shade by mixing red, yellow, and blue. Use more blue to get a cooler “color gray” or more red if you want a warmer color. Hope this is what your looking for.
Explanation:
Brainliest please?
Answer:
A pure gray is a combination of white and black. Add more black than white for it to be dark gray.
Explanation:
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Help pls
Answer:
10is a and 11 is b
Explanation:
Which are segments of DNA that code for specific traits? genes chromosomes proteins codons
Answer:
genes
Explanation:
Genes are linearly distributed parts of chromosomal DNA.
A gene is a physical and functional unit of inheritance, which transmits a hereditary message from generation to generation, and makes up the entire body of DNA needed to synthesize a single protein or a single RNA molecule.
Genes are strung along chromosomes
Answer:
genes
Explanation:
During the Precambrian, Earth's first atmosphere is theorized to have been composed of a poisonous mixture of helium and hydrogen gases. When Earth's crust began to cool, the makeup of the atmosphere changed.
Answer:
Yes.
Explanation:
Yes, early Earth's atmosphere was formed from the poisonous mixture of helium and hydrogen gases. But with the passage of time when Earth's crust began to cool, the composition of the atmosphere changed and carbondioxide and water concentration in the atmosphere increases due to carbondioxide gas emission from the volcanoes and evaporation of water from water bodies present on the surface of earth.
If the above parents were crossed. What is the probability that the offspring will exhibit the dominant trait?
A) 75 %
B) 50 %
C) 25 %
D) 100 %
Answer:A 75%
Explanation