Explanation:
The base pairing of guanine (G) and cytosine (C) is just the same in DNA and RNA. So in RNA the important base pairs are: adenine (A) pairs with uracil (U); Guanine G() pairs with cytosine (C).
The Chargaff rule only holds true for DNA. Base pairing doesn't take place since RNA is single-stranded. Consider a DNA strand.
What make base pair unique in DNA and RNA?Compare the two DNA strands' base-pair rules to this one. Since uracil is absent from DNA, T and A complement one another. In contrast, T bonds with A and A bonds with U in a DNA/RNA match.
Important: It serves as the foundation for base pairing. This rule can be used to both determine the DNA strand length and if a base is present in the molecule.
Adenine and thymine are always equal, and cytosine and guanine are also always equal, allowing us to calculate the percentages of each base.
It assists in figuring out the makeup and structure of DNA in various species. It is constant within a species.
Therefore, the base-pair rule for a DNA strand matching an RNA strand.
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Binding of the lac repressor protein to the lac operator is regulated allosterically. This means that the presence of a specific small molecule that binds to the lac repressor controls whether the repressor can bind to the lac operator, and therefore whether the operon is turned on or off. Can you sort the following conditions based on whether they are associated with the lac operon being turned ON or turned OFF?
a. Allolactose is absent
b. Allolactose is present
c. RNA polymerase cannot transcribe the operan genes
d. The lac repressor protein cannot bind to the lac operator
Answer:
a. OFF
b. ON
c. OFF
d. ON
Explanation:
Allosteric regulation is a process by which a particular molecule activates or inhibits an enzyme, by binding to a site different from the active site of the enzyme. Allolactose is a disaccharide that binds to the allosteric site of the lac repressor protein, triggering a conformational change in the protein that prevents the binding of this repressor to DNA. Moreover, RNA polymerase (RNA pol) is an enzyme required for the process of transcription, and therefore when this enzyme cannot bind to operon genes the lac operon is being turned OFF. Finally, the lac operator is a nucleotide sequence where RNA pol binds, and the lac repressor binds to the lac operator in order to block the transcription of the lac operon.
The 4 planets that are closest to the Sun are called terrestial planets while the 4 outermost planets are called 'gas giants' or 'ice giants'.
True
False
Answer:
TRUEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Explanation:
Answer:
true
Explanation:
they are much bigger than the terrestial planets
How does cell division relate to the process of asexual reproduction ?
Answer:
sexual reproduction occurs by cell division during mitosis to produce two or more genetically identical offspring. Sexual reproduction occurs by the release of haploid gametes (e.g., sperm and egg cells) that fuse to produce a zygote with genetic characteristics contributed by both of the parent organisms.
Explanation:
hope you like my ans
What is one of the causes of mechanical weathering?
A. acid rain
B. oodation
C. animal actions
D. carbon dioxide
Answer:
answer is A hope it helps if it dont what can i help you with later.
Explanation:
1.An increase in the population of an organism would most likely be associated with which of the following?
A.an increase in animals that prey on an organism.
B.A decrease in necessary resources.
C.An expansion of suitable living space.
D.A series of severe weather events in the habitat.
Answer:
a series of severe weather events in the habitat
An increase in the population of an organism would most likely be associated with a series of severe weather events in the habitat. The correct option is D.
What is the population?A collection of creatures from the same species that can interact to create fertile progeny. It is on a level above organisms but below the ecosystem and community.
An ecosystem is a level of organization where several communities of various species and the associated abiotic elements interact. It is the place where different population interacts with each other.
A biosphere and a biome are larger organizational levels than this one. Communities are levels of the organization where various populations coexist and engage in social interactions.
Therefore, the correct option is D. A series of severe weather events in the habitat.
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Scientists were investigating a pond of water found deep in a South American cave along the Yucatan Penisula. They obtained many samples which they took back to their lab. After much testing, they found that the water has an acidic pH of 3. Another much more surprising discovery was that a new species of a unicellular organism was present in the samples. The organism was observed with a microscope and found to not have a bound nucleus or organelles. To which Domain would this organism be classified?
Group of answer choices
Bacteria
Protista
Eukarya
Archaea
Answer:
Bacteria
Explanation:
Bacteria is the correct answer because it lacks organelles or a nucleus.
Protista is not the correct answer because they have organelles and a nucleus.
Eukarya is not the correct answer because they have organelles and a nucleus.
Archaea is not the correct answer because they have organelles and a nucleus.
Bacteria is the correct answer because it lacks organelles or a nucleus. Protista is not the correct answer because they have organelles and a nucleus.
What is Bacteria?Eukarya is not the correct answer because they have organelles and a nucleus. Archaea is not the correct answer because they have organelles and a nucleus.
Microbes known as bacteria have simpler cell structures than many other types of creatures. One DNA loop serves as their command center and houses all of their genetic data. Instead of a nucleus, some bacteria have an additional ring of genetic material called a plasmid.
Genes that offer the bacterium a competitive edge over other bacteria are frequently found in the plasmid. For instance, it might have a gene making the bacterium immune to a specific antibiotic.
Therefore, Bacteria is the correct answer because it lacks organelles or a nucleus. Protista is not the correct answer because they have organelles and a nucleus.
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Scientists who have strong moral beliefs about the subject that they study may show bias in the way they interpret their data
True
False
Please help me
In cystic fibrosis, an important protein destined for the plasma membrane never makes it beyond the Golgi complex. This protein is necessary for Na and Cl- transport and is critical for maintaining mucous secretions of the appropriate consistency. Devise an explanation for why this may occur.
Answer:
The correct answer is - Golgi apparatus marks or tags on this protein as incorrect or dysfunctional tags which then prevents it from transported to the membrane.
Explanation:
The role of the Golgi apparatus is to process and package the proteins produced and come from ER and transfer them to the plasma membrane in order to transfer them to their target sites.
The Golgi apparatus marks or tags the proteins that are incorrect or dysfunctional, in order to prevent these proteins from transporting to the plasma membrane and harm the membrane. In CF, the case is similar as the Golgi apparatus tags these proteins as incorrect or dysfunctional.
Drag and drop the words or phrases that best complete the
paragraph.
Enzymes are important
in your cells that
important biochemical reactions such as
building muscle or breaking down large food molecules.
Enzymes are often called a
because they
can
the speed of an biochemical reaction.
Scientist often measure how quickly biochemical reactions
occur in cells. The time it takes for a biochemical reaction to
start and finish is known as the reaction
rate
proteins
decrease
catalyst
increase
carbohydrates
speed up
Answer:
Look below
Explanation:
Enzymes are important proteins in your cells that speed up important biochemical reactions such as building muscle or breaking down large food molecules. Enzymes are often called a catalyst because they increase can the speed of an biochemical reaction. Scientist often measure how quickly biochemical reactions occur in cells. The time it takes for a biochemical reaction to start and finish is known as the reaction rate
Enzymes are important proteins in your cells that speed up important biochemical reactions such as building muscle or breaking down large food molecules.
How are enzymes important for biochemical reactions?Enzymes are often called a catalyst because they increase can the speed of a biochemical reaction. Scientists often measure how quickly biochemical reactions occur in cells. The time it takes for a biochemical reaction to start and finish is known as the reaction rate.
Enzymes share two key characteristics with all other catalysts. First, they speed up chemical processes without being eaten or irreversibly changed by the process. They also speed up reactions while maintaining the chemical equilibrium between reactants and products.
Therefore, the enzyme acts as a catalyst to speed up a biochemical reaction.
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Which of the following is a correct way to report an example of the speed of an object?
A 50 s/m
B 50 m/km
C 50 m/s
D 50 s/km
Answer:
C. 50m/s
Explanation:
speed is distance/time
m/s
GIVING BRAINLIEST FOR CORRECT ANSWER
Dimples is a dominant trait (D). The Punnet square shows a cross for this trait between two parents.
What is the probability that the offspring will have dimples?
25%
50%
75%
100%
Answer:
50%
Explanation:
anyways have a good day
a. Compare the time needed to reach the peak amount of antibody production for the first and second encounters.
Answer:
no entiendo porfa pongan en español por que no entiendo wl ungles jajja
Why does a pea plant with the genotype Rr have round seeds, not wrinkled ones.
Answer:
Wrinkled peas need to have genotype rr, since the wrinkled trait (r) is recessive
The images represent sexual and asexual reproduction. These methods of reproduction vary in terms of the genetic composition of offspring. In __________ the offspring are genetically identical to the parents.
Answer:
in asexual reproduction the offsprings are genetically identical to the parents.
Explanation:
Answer:
Images B and C
Explanation:
.
Some types of algae can grow together with fungi. The fungi provide nutrients from decaying matter to the algae, while the energy the algae get from sunlight is shared with the fungi. Based on this information, how would you describe this relationship?
A.The algae is the predator, and the fungus is the prey.
B.The two organisms are in a mutualistic relationship.
C.The fungus is a parasite, and the algae is the host.
D.The two organisms are in competition.
Answer:
Look this up on jkshia. they have all answers on there
Explanation:
Carbonized fossils are made of:
O the carbon remains of the original organism
O carbon which replaced the plant or animal
O a cast of coal
O a mold left in coal
Answer: are the substance left after the organism was buried.
Explanation: I know this is not a answer but the carbon is rapidly buried until its rock.
Volcanoes are part of which sphere of Earth?
a. biosphere
b. geosphere
c. hydrosphere
d. atmosphere
A population of birds eats nuts and seeds. Some birds have larger beaks, and some have smaller beaks. A pair of birds usually produces four or five offspring each year. After several yeaers of little rain, the seeds became larger and larger. The birds with larger beaks were better at cracking these seeds. After several generations, the average beak size in the population increased. Bird beak size increasing after several generations is: a. decent with modification. b. variation. c. overproduction. d. adaptation
As far as I can tell, the answer would be D. Adaptation. The birds are evolving to adapt to their environment, and as such, their beaks are getting larger to crack larger seeds.
The following are examples of chemical energy
a. Natural gas
b. Wood
c. Coal
d. All of the above
Answer:
ANS= ALL OF THE ABOVE ARE THE CHEMICAL ENERGY.
Identify the sentence type in the following: Max likes macaroni?
Simple
Compound
Complex
Compound-complex
Identify the sentence
Moving your limb through a full 360 degree circle is called what*
Rotation
Circumduction
Flexion
Extension
Answer:
rotation
Explanation:
circle is 360 degrees
Moving your limb through a full 360 degree circle is called rotation of your limb.
What is rotation?Rotation is the process of moving an object or a body from a central position, through the circumference of that position.
This type of motion is usually 360 degrees movement because it involves a complete circle or turn.
Thus, moving your limb through a full 360 degree circle is called rotation of your limb.
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Answer and I will give you brainiliest
**Please only surely answer**
Answer:
Semicircular canals
Your welcome!!
8. Genes are sorted and recombined to produce gametes. Which statement describes a possible result of this process?
A. Gametes always form with genetic material identical to the parent
B.Gametes are formed with the same number of chromosomes as the parent cells
C.Offspring display half of their traits from their mother and half of their traits from their father
D.Offspring have traits not displayed by either parent
Answer:
c option is correct.
Explanation:
gametes are produced by meiosis during which genes get crossed in a process of crossing over ad new recombinent characters are produces. these gametes fertilized and offsprigs have multiple characters they get from their mother and faaher. so offsprimgs have characters half from mother and other half from father.
Genes often produce gametes. The statement that describes a possible result of this process is that Offspring display half of their traits from their mother and half of their traits from their father.
What is genes and gametes?A gene is known to be the molecular unit of heredity of all living beings.
A gamete is known to be a cell that comes together with another cell during fertilization that takes place in organisms that reproduce and this is a product of the male and the female gamete.
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In many parts of the world, there is a rock layer rich in the metal iridium. Iridium is very rare on Earth, but it is relatively common in meteorites and other debris that comes from outer space. All occurrences of this iridium layer are from the same geologic epoch, at the very end of the Cretaceous. Most of the fossils in rock layers below the iridium layer, including dinosaur fossils, do not appear in layers above the iridium layer.
Based on this evidence from the rock and fossil record,
A.
meteoroids and other space debris did not impact the Earth at the end of the Cretaceous.
B.
an asteroid impact likely caused a mass extinction at the end of the Cretaceous.
C.
meteorites and other space debris no longer contain the metal iridium.
Answer:
B.
an asteroid impact likely caused a mass extinction at the end of the Cretaceous.
Explanation:
I did this assinment.
Please answer fast!
What are the two arteries where you can check your
pulse?
A. brachial and dorsalis
B. facial and femoral
C. carotid and radial
D. temporal and auricular
Answer:
c
Explanation:
Because the Carotid is your wrist and Radial is your neck
Will give brainliest How would this change MOST LIKELY affect the various populations over time?
A The change in leaf litter would cause a decrease in each population due to a decrease in each organism’s food supply.
B The change in leaf litter would cause an increase in each population due to an increase in each organism’s food supply.
C The change in leaf litter would cause an increase in level 1 consumers due to an increase in their food supply. Level 2 and level 3 consumers would decrease due to a decrease in their food supply.
D The change in leaf litter would cause a decrease in level 1 consumers due to a decrease in their food supply. Level 2 and level 3 consumers would increase due to an increase in their food supply.
Answer:
i think C but i could be wrong
Explanation:
What were the 2nd & 3rd rovers on Mars called?
What was the 4th rover on Mars called?
plz help
HELP FAST
1. Which of these factors can cause an overpopulation of Candida yeasts?
1.contaminated food
2.mosquito bites
3.good hygiene
4:having diabetes
Answer:
having diabetes.
Explanation:
i checked online reading a creditable article and quizlet.
Diabetes can result in an overpopulation of Candida yeasts.
So, option 4: is correct.
Define overpopulation.Overpopulation is an undesirable condition in which the number of current humans exceeds the earth's real carrying capacity. It has a variety of causes, ranging from a decrease in the mortality rate to married girls and other factors.
Diabetes can result in an overpopulation of Candida yeasts.
So, option 4: is correct.
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Which statement BEST explains how global warming is causing sea levels to rise
Answer:
A. warmer temperatures are causing glaciers to melt
Explanation:
High temperature extremes and heavy precipitation events are increasing, glaciers and snow cover are shrinking, and sea ice is retreating. Seas are warming, rising, and becoming more acidic, and flooding is become more frequent along the U.S. coastline.
. Gymnosperms are a group of seed plants that produce___
1.seeds, pollen and fruit
2.no flowers or fruit
3.no seeds or pollen
4.flowers and fruit
Answer:
2 is the right answer
Explanation:
they do not produce fruit or flowers think of a pine treee of a spruce tree
Gymnosperms are a group of seed plants that produce no flowers or fruit. Therefore, option B is correct.
What are gymnosperms?A relatively tiny class of plants known as gymnosperms produce seeds and lack flowers. This means that unlike in a fruit, where the seeds are formed inside the reproductive structure, they are produced on the surface of the reproductive structure.
The Coniferophyta, Cycadophyta, Gingkophyta, and Gnetophyta are the four primary phyla that makeup gymnosperms. Conifers, which have needle-like leaves and thrive in arid, cold climates, are the most common gymnosperm.
Some examples of gymnosperms are ginkgo, pine, melinjo. sago palm, cedars, and spruces. Gymnosperms are a group of seed plants that produce no flowers or fruit. Therefore, option B is correct.
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