A trade of chromosome segments among non-sister homologous chromatids happens and is referred to as crossing over.
Crossover happens while chromosomes, usually homologous times of the equal chromosome, spoil after which reconnect however to the specific quit piece. If they spoil on the equal location or locus withinside the collection of base pairs, the end result is an trade of genes, referred to as genetic recombination.
What are homologous chromosome?Homologous chromosomes are made from chromosome pairs of about the equal length, centromere position, and marking pattern, for genes with the equal corresponding loci.
Thus it s well expalined.
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How does a noncompetitive inhibitor decrease the rate of an enzyme-catalyzed reaction?.
2. Which of the following is true of the Golgi apparatus?
A) It is especially extensive in cells specialized for absorption.
B) It consists of flattened membranes dotted with ribosomes.
C) It is a membrane-bound vesicle with hydrolytic enzymes.
D) It is specialized for production of hydrogen peroxide.
E) It is involved in modifying and shipping proteins out of cells.
an
What is the correct answer?
The answer is E; after proteins are produced by the rough endoplasmic reticulum / ER, the proteins go to the Golgi Apparatus to be repackaged and modified before being sent out of cells!
Hope this helps :)
1.what causes muscle fatigue after avery hard physical exercise ?
During a very hard physical exercise lactic acid will be alocated, that causes muscle fatigue.
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How many calories are there in 30 Ibs of salmon if each pound of salmon equals approximately 654 cal?
Answer:
There are 19,620 calories in 30 lbs of salmon
Explanation:
If 1 pound of salmon = 654 calories, we need to find how many calories are in 30 pounds of salmon
30 x 654 = 19,620 calories
What color is reflected back to cause plants to appear green?
Answer:
Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green.
Chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green. Chlorophyll is found in the chloroplasts of plants.
Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues.
Explanation:
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Because chlorophyll does not absorb the green wavelengths of white light, it is chlorophyll that gives plants their green color. Thus, the correct option is B.
What is Chlorophyll?Chlorophyll is a pigment that is found in all green plants as well as some other species. It is crucial for the process of photosynthesis, which transforms light energy into chemical energy.
The chlorophyll pigment is in charge of giving plants their characteristic green hue since it does not absorb the green portions of white light; as a result, the plant reflects the particular light wavelength, giving it the appearance of being green.
Since chlorophyll is a poor absorber of the green and near-green portions of the electromagnetic spectrum, tissues containing chlorophyll are green in color. Chlorophyll absorbs light most powerfully in the blue and red portions of the electromagnetic spectrum.
So, the correct option is B.
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Examine the process represented in the diagram.
Which choice best describes what is occurring at step B?
Two strands of DNA form a double helix.
DNA and proteins form tight coils.
DNA wraps around histones.
Coils of DNA and proteins wind into larger coils.
The Process of Chromosome Creation is as follows:
First is the forming of a double helix by 2 strands of DNANext is the wrapping around of 8 Histones with DNA.Then, the wrapping of Histones with Nucleosome Arrays (aka The "Tight Coil" Step).Finally, the Coils of DNA and proteins wind into larger coils.Answer:
DNA wraps around histones.
I am accepting any correction if I accidentally stated false information :).
P.S. I'm just in my 9th grade :D (I tried my best to explain this, I hope this helped you)
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7. How did scientists determine the age of the ocean floor?
a. by calculating magnetic reversals
b. by the age of the rock samples
c. by evaluating earthquake depth
Answer:
a. By Calculating magnetic reversals.
Explanation:
They determine the age of the ocean floor by examining magnetic fields in the planet Earth.
A box is pushed a distance of 4 meters with a force of 10 N. How much work has been done?
6 units of work
40 units of work
14 units of work
No work has been done
The quantity of work done by the box is equal to 40 units of work.
Given the following data:
Distance = 4 meters.
Force = 10 Newton.
How to calculate work done.In Science, work done is generally calculated by multiplying force and the vertical distance (displacement) that is covered by an object.
Mathematically, work done is given by the formula:
Work done = force × distance
Substituting the given parameters into the formula, we have;
Work done = 10 × 4
Work done = 40 units of work.
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8. After learning about Walker and her love of and exploration of galaxies, what questions do you still have? What do you want to know more about?
After learning about Walker and her love of and exploration of galaxies, the most questions often ask is how these galaxies came into existence.
How these galaxies came into existence?Galaxies are known to be the product of a start of small compositions or clouds of stars and dust that are said to have been moving about through space.
Conclusively, Note that as other different clouds tries to get close, gravity is known to be the force that sends these objects scattering into each other then they mix up together to form a bigger spinning packs known as Galaxies
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Which term is used to describe an organism's genetic make-up?
Answer:
genotype
Explanation:
Which organism has the more efficient heart?
A: a frog
B: a robin
C: an alligator
D: a tuna
Answer:
I think its a alligator or a frog I'm not rlly sure but I think it might be a alligator
what is one benefit to giant octopuses laying many eggs?
Answer:
The majority of baby octopuses born don't reach adult hood, laying more eggs increases the number of babies that have a chance to make it to adulthood.
Answer:
During courtship, both octopuses use their sense of sight to determine attraction. Males are looking for a large female. Larger diploid females produce more haploid eggs, by meiosis If more eggs are fertilized, it gives the male a greater probability to pass on his genes.
Explanation:
just allows males to pass on more of their traits
. Which of the following types of erosion is caused by landslides?
a. Gravity erosion
b. Wind erosion
c. Wave erosion
d. Temperature erosion
e. Flood erosion
Answer:
a. Gravity erosionerosion
Explanation:
DNA typing is based on analyzing parts of the genome that don't really affect other genetic functions.
A. True
B. False
The question proposed is in fact false, given that the variations being analyzed do in fact affect the individual.
Why is this question false?DNA typing uses the detection of polymorphisms to identify an individual. These polymorphisms are variations in the genetic code that are considered to be normal. These variations are said to not be harmful nor beneficial but do in fact impact the rest of the genome in very subtle ways.
Therefore, we can confirm that the question proposed is in fact false, given that the variations being analyzed do in fact affect the individual.
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Please Help!
What is the approximate temperature and altitude of the tropopause, stratopause, and mesopause?
Answer:
tropopause: about 12-18 km about –60 stratopause: about 46-54 km about –2 to 0 mesopause: about 85-90 km about –90 4
Explanation:
Answer:
tropopause: about 12-18 km about –60
stratopause: about 46-54 km about –2 to 0
mesopause: about 85-90 km about –90
Explanation:
Drea is comparing three organisms. Two have many of the same characteristics. But they have very few characteristics in common with the third organism. What can Drea infer about the relatedness of these three organisms?
Group of answer choices
The first two are unrelated, but each is related to the third.
Relatedness of the three organisms depends on the characteristics the first two share.
The first two are more closely related to each other than they are to the third.
The first two are equally related to the third.
Answer:
The first two are more closely related to each other than they are to the third.
Explanation:
The question tells us that the first two organisms share many common characteristics with each other, this tells us that the first two are related. We can cross out answer choice a. The question also tells us that the first two have very few characteristics in common with the third organism. With this much info given, the answer choices left are:
Relatedness of the three organisms depends on the characteristics the first two share.The first two are more closely related to each other than they are to the third.The first two are equally related to the third.First choice doesn't make any sense, there is no correlation between the common characteristics of the first two with the 3 organisms as a group.
Second choice makes sense and logical.
Third choice is wrong since the question does not give us enough information to know the first two is equally related to the third.
The first two are more closely related to each other than they are to the third. Is the right answer.
Which of the following is a genotype for an individual heterozygous for a trait?
a. Rr
b. tt
c. YY
d. Pr
Answer:
A. Rr
Explanation:
A. has the same phenotype
D. has different prototypes
How long does it take for tadpoles to turn into frogs?.
Answer:
about 14 weeks.
Compare the chromosome number of the parent cell with that of each daughter cell.
Answer:
In mitosis, the daughter cells have the same number of chromosomes as the parent cell, while in meiosis, the daughter cells have half the number of chromosomes as the parent.
Who was the famous political cartoonist who made Uncle Sam popular?
Answer:
Thomas Nast
Explanation: American cartoonist Thomas Nast cemented the image of Uncle Sam in his own drawings during the 1870s. By the early 1900s
Viruses require __________ for growth (to spread).
bacteria
plants
animals
living cells (host)
Answer:
Living cells
Explanation:
Viruses require living cells. Viruses aim to replicate themselves, and cells do exactly that. By injecting their DNA into a living cell, the cell will replicate the virus's DNA and infect other cells, spreading it more and more in the organism.
unifying scientific explanation supported by testing
Unscramble the word.
RYTHOE
Answer:theory
Explanation:
it stood out to me
Ethnopharmacology is a subdiscipline in the field of ethnomedicine. Identify what someone within the ethnopharmacology field might do during their research.
how far is the moon from earth?
On an average, the Moon is approximately 238,900 miles (384,400 kilometers) away from the Earth.
What is the Moon?The Moon is a natural satellite of the Earth, meaning it is a celestial body that orbits around the Earth. It is the fifth-largest moon in the solar system and the largest relative to the size of its host planet.
The Moon is approximately one-quarter the size of the Earth and has no atmosphere, no liquid water, and no magnetic field. It is primarily made up of rock, dust, and ice and has a surface covered in craters, mountains, and flat plains called "maria." The Moon has been the subject of scientific study and exploration for decades, and it continues to be a source of fascination and wonder for people all over the world.
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When the winter brings seasonal changes, how do northern and southern frogs respond?
Cold-blooded northern and southern frogs migrate to warmer regions to hibernate for the winter.
Frogs are cold-blooded and rely on the outside temperature to keep them warm. In response, they hibernate to stay warm.
Frogs are warm-blooded and rely on the outside temperature to keep them warm. In response, they hibernate to stay warm.
Warm-blooded northern and southern frogs migrate to warmer regions to hibernate for the winter.
Answer:
They rely on the warmth of the soil to keep them warm and also hibernate on land or in the mud.
Explanation:
What percentage of water on Earth is Freshwater?
O 23%
O 13%
O 3%
0 35%
Answer:
A tad-size 3%
Most of the earth's water is actually salt water. Suppose we could not drink this type of water, but some sea creatures and plants need it. 3% of the earth's water is fresh water, and that small 3% actually is in water bottles, too!__________________________________________________________
Questions?Ask in the comments.
Melanin is a protein that causes color in fur.
True
False
Answer:
False
Explanation:
It is false because melanin is a GENE that causes color in fur, skin, hair etc..
I hope it helps! Have a great day!
Pan~
Answer:
False
Explanation:
Melanin is a gene not a protein, although melanin does cause the color in animal’s fur.
I hope it helps! Have a great day!
Anygays-
Which of the following explains why it is important to store feed correctly?
Answer:
the important explaination we must store food in the cool place
how can we slow down sea level rise
Answer:
By reducing global warming
Explanation:
Rise in sea level happens because of the melting of north and south pole as the ice melts the sea level rises so it can be slowed if we reduce global warming
help please giving brainlist
Answer:
Decomposer
Explanation:
Hope this helps! :)
