The molecular biology technique of reverse genetics can be useful for determining the function of a gene.
What is reverse genetics?Reverse genetics is method use in molecular biology to determine gene function in an organism
The procedure in reverse genetics involves modifying or certain nucleotide sequences in the DNA coding for a functional gene and then observing changes to the phenotype of the organism brought about by the modifications.
Therefore, reverse genetics can be useful for determining the function of a gene.
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Hello people ~
Seed formation without fertilization in flowering plants involves the process of
a) Apomixis
b) Somatic hybridization
c) Budding
d) Sporulation
Explanation:
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Seed formation without fertilization in flowering plants involves the process of ---
A) APOMIXIS
Which choice correctly identifies a positive correlation regarding the increase in black peppered moth populations in England during the late 1800s?
O the correlation between air pollution and white moth predation
O the correlation between black moth populations and predation of black moths
O the correlation between air pollution and black moth predation
O the correlation between air pollution and white moth populations
The choice that correctly identifies a positive correlation to the increase in black peppered moth population is : ( C ) The correlation between air pollution and black moth predation
Increase in Black moth populationDuring the indutrial revolution which was in the late 1800s the number of black moth increased and this was regarded as a direct consequence of air pollution during the industrial revolution. The evolution off the peppered moth into dark ( black ) moth was regarded as a evolutionary instance.
Hence we can conclude that a positive correlation to the increase in black peppered moth population is The correlation between air pollution and black moth predation.
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Can Please please help
Answer:
You're right, D is Correct
Explanation:
I had this question a couple days ago
Answer:
See below ~
Explanation:
Evaluating the statements
Pea plants can only have tall or short stems. [correct !]A dark brown dog describes part of its phenotype. (visible features) [correct !]A bb individual has two recessive alleles. (recessive alleles are represented by lowercase letters) [correct !]⇒ All of the statements are correctAn individual receives a knife wound to the axillary region. The nerve plexus most likely to be damaged is the.
Answer:
The brachial plexus is most likely to be damaged.
Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?
Answer:
bacteria
Explanation:
b/c bacteria is not eukaryotic
How many lunar cycles happen each year?
How does the contractile vacuole in a single-celled organism function to maintain homeostasis?
It pumps water into the cell.
It pumps water out of the cell.
It pumps solutes into the cell.
It pumps solutes out of the cell.
B. It pumps water out of the cell
Hope this helps :))
Answer:
B
Explanation:
B
A student made a table to show information about the physical structures and organs of birds. what statement best describes how to correct an error in the table? a table about birds with the headings physical structure and function. the feathers are listed as a physical structure and function to protect the bird from the environment. the ovaries are listed as a physical structure and function to support the body. the feathers support the body. the feathers help the bird move. the ovaries produce the eggs. the ovaries produce the sperm.
The ovaries are a physical structure and the function of the ovary is to produce eggs in the birds.
Physical structures of birdsThe physical structures are those structure that we can see in an organism but externally and internally. The table is not shown here but we can still make some corrections.
The ovaries are a physical structure and the function of the ovary is to produce eggs in the birds.
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Answer: c
Explanation: pls brainiest
i'll give you 50 points Homeostatic mechanisms work continuously to maintain stable conditions in the human body. Using the model provided, explain how feedback mechanisms maintain blood sugar levels. Choose ALL Three that apply.
When blood sugar levels are too low, glucose is released from glycogen where it's stored.
This is an example of a negative feedback mechanism because the initial stimulus is reversed.
This is an example of a positive feedback mechanism because the initial stimulus is enhanced.
When blood sugar levels are too high, the pancreas releases insulin to store excess glucose as glycogen.
When blood sugar levels are too high, the pancreas releases insulin to store excess glucose as glucagon.
Answer:
I think it’s these 3 based off my current knowledge and the internet
When blood sugar levels are too low, glucose is released from glycogen where it's stored.
When blood sugar levels are too high, the pancreas releases insulin to store excess glucose as glucagon.
This is an example of a negative feedback mechanism because the initial stimulus is reversed.
Explanation:
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Answer: The Answer is negative feedback because i just got it write on my online SG
Explanation:
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Mendel’s principle of segregation reflects what event in meiosis?.
Answer:
during meiosis alleles segregate
Explanation:
ther can be more than one type of allele for a gene
Which of these will MOST likely occur if chemicals from fertilizers run off into lakes and streams?
Which of these will most likely occur if chemicals from fertilizers run off into lakes and streams?
Fish will die from a lack of oxygen.
hope this helps
Why is it beneficial to plants that soil particles have negatively-charged surfaces?.
Answer:
Why is it beneficial to plants that soil particles have negatively-charged surfaces? Negatively-charged ions are pushed towards the roots. They attract positively-charged ions and prevent them from being washed deep into the soil.
Explanation:
hope this helps
What grape is revered as the noblest grape variety to grow in Germany; yet it presents problems since it requires long cool maturation to reach full flavor potential, and it is susceptible to fall frosts. This grape is the most widely planted grape in Germany:
Riesling grape variety is revered to as the noblest grape variety grow in Germany.
What is Riseling grape?Riesling is a white form of grape variety that is has aroma and very beautiful displaying flower. It originated in the Rhine region and it is common found in germany. It is highly perfumed, aromas and very acidic. It is nomally use to produce dry, semi-sweet, sweet, and sparkling white wines. Riesling wines are usually varietally pure.
Therefore, Riesling grape variety is revered to as the noblest grape variety grow in Germany.
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The bones from an animal found at an archaeological dig have a C614 activity of 0.10 Bq per gram of carbon. The half-life of C614 is 5730 yr. What is the age of the bones?
C14 is an isotope used in radiocarbon dating techniques to date organic matter remains. The age of these bones is approximately 6890 years.
What is Carbon 14?
Carbon 14, also known as radiocarbon, is a radioactive carbon isotope.
Isotopes are the atoms of the same element -carbon- that vary in neutrons and, hence, in their massic number. They are alternative forms of the same element.
The radioactive C14 nucleus contains 6 protons and 8 neutrons and has a half-life of 5730 years.
The term half-life is a reference. It means that an organism that has been dead for 5730 years has half the C14 amount or concentration than the same organism had when it was alive.
Knowing the half-life of an element is useful to determine the age of the dead matter.
C14 is used in radiocarbon dating techniques or methods to estimate the age of fossils. This is a reliable technique used for dating organic samples that are less than 50,000 years old.
Available data:
The half-life of C14 is 5730 yearsBones activity of 0.10 Bq per gram of carbonTo answer this question we can make use of the following equation
Ln (C14T₁/C14 T₀) = - λ T₁
Where,
C14 T₀ ⇒ Amount of carbon in a living body. We know, by bibliography, that living organism activity is 0.23 Bq per gram of carbon. So, C14 T₀ = 0.23 Bq/gC14T₁ ⇒ Amount of carbon in the dead body. C14T₁ = 0.1 Bq/gλ ⇒ radioactive decay constant = (Ln2)/T₀,₅T₀,₅ ⇒ The half-life of carbon 14 = 5730 yearsT₀ = Time when the organism was aliveT₁ = Age of bonesLet us first calculate the radioactive decay constant.
λ = (Ln2)/T₀,₅
λ = 0.693/5730
λ = 0.0001209
Now, let us calculate the first term in the equation
Ln (C14T₁/C14 T₀) = Ln (0.1/0.23) = Ln 0.4347 = - 0.833
Finally, let us replace the terms, clear the equation, and calculate the value of T₁.
Ln (C14T₁/C14 T₀) = - λ T₁
- 0.833 = - 0.0001209 x T₁
T₁ = - 0.833 / - 0.0001209
T₁ = 6889.99 ≅ 6890 years
The bones are approximately 6890 years.
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When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?
A) inducer
B) promoter
C) repressor
D) corepressor
The molecules that bind to a repressor so that the repressor no longer binds to the repressor operator
The repressor no longer binds to the operator?The lac repressor protein binds to the operator and blocks the binding of RNA polymerase to the promoter and transcription of the operon. The promoter is the binding site for RNA polymerase, the enzyme that carries out transcription. The operator is a negative regulatory site to which the lac repressor protein binds.
With this information, we can conclude that the molecules that bind to a repressor so that the repressor no longer binds to the repressor operator.
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Gold is not a compound.
O A. True
O B. False
Answer:
A or True
Explanation:
Gold is not a compound.
Which organisms produce about half of the Oxygen in Earth?
At least half of Earth's oxygen comes from the ocean.
The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize. One particular species, Prochlorococcus, is the smallest photosynthetic organism on Earth.
In some parts of the Edwards Plateau ecoregion in Texas, overgrazing from deer and livestock is killing the grasses that live there. How will the the soil in these areas likely be impacted by overgrazing?
A.
Precipitation will soak into the soil more easily.
B.
Deposition will create more soil.
C.
Weathering will make the soil less useful.
D.
Erosion will remove more of the soil
Answer:c
Explanation:
it will kill the animals that eat the grass and them
If there were no lynx controlling the snowshoe hare population, what would eventually happen to the population of the snowshoe hares and the grasses that the snowshoe hares eat?
Answer:
The snowshoe hare population would grow and then go down
Explanation:
This is because they will have less or no predators so that contributes to the population growth. Eventually the population will be so big, that there will be less of the grass left for the whole population because it is so big.
Answer: yes
Explanation: uhh cause hare
find the area of each triangle
Answer:
First you need the Formula of ( LXW X 1/2 = A)
Explanation:
For the first triangle we have a length of 8 and a width of 8. So we multiply
8 X 8=6464 X 1/2 = 32Hence Triangle 1 Equals 32Yd^2TRIANGLE 2
6 X 5=3030 X 1/2 = 15Hence Area= 15ft ^2TRIANGLE 3
10 X 8 =8080 X 1/2=40Hence Area is 40in^2science book which of the following evidence that Earth is a sphere ? choose all that apply
A. Higher Elevations allow you to see around the curve of Earth's horizon
B. You see only the top part of a ship as it sails over the horizon.
C. The sun and stars travel across the sky from east to west.
Which earthquake will cause more damage: an earthquake of magnitude 5 or 7?
Answer:
Magnitude 7 can cause more damage
A population of finches that have 3 different beaks live on an island. Each beak type is adapted to one of 3 specific food sources. Two of the three food sources are eliminated during a hurricane. What will happen to the finch population
Explain how the processes of sedimentary rock formation change the geosphere.
Answer:
I think because of weathering, erosion, etc.
Explanation:
Sedimentary rocks are formed from weathering, the transportation of existing rocks and deposition, cementation, etc.
Use the drop-down menus to identify the role of each organism in the food chain. in alaska, salmon feed on tiny plants called phytoplankton. during late summer, salmon gather in rivers to reproduce. grizzly bears visit these rivers to feed on the large number of salmon. phytoplankton are . both the salmon and the grizzly bears are . grizzly bears are .
The role of each organism in the food chain are
Phytoplankton ---Autotrophs Salmon---- consumersGrizzly bears ----consumersWhat is the food chain?Generally, A food chain is simply defined as a network of creatures in the Environment that passes nutrients and energy from one organism consumes to another.
In conclusion, Naturally, Phytoplankton is a microscopic algae Autotrophs while Salmon and grizzly bears are both endangered species who are both consumers and Grizzly bears are also secondary consumers.
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Answer:
Phytoplankton are autotophs
Both the salmon and the grizzly bears are consumers
Grizzly bears are sedondary consumers
Explanation:
hey I need help with this biology question
Answer:
run away and slime at like
Explanation:
i did it and got it riight
What happens after mRNA
leaves the nucleus?
A. It is used to protect the cell membrane.
B. Its sequence is decoded by the Golgi body.
C. Its sequence is decoded by tRNA.
D. It is used to produce ATP in the
mitochondria.
Where would you not find a cholinergic nicotinic receptor.
Answer:
You would not find a cholinergic nicotinic receptor on parasympathetic target organs
Explanation:
When the skin comes in contact with an irritant, receptors in the skin send signals to the spinal cord. The signal is then sent to the brain for processing, and the individual begins to scratch the affected area. Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?
When the skin comes in communication with an hassle, receptors in the skin send signs to the spinal cord. The signal is then sent to the brain for proceed, and the individual begins to rub the affected area.
What kinds of touch receptors are found in the skin?The main types of touch receptor are called thermoreceptors, chemical receptors, and mechanical receptors.
Thermoreceptors are like the thermometer notification for your skin receptors, designed to detect changes in the temperature of the outer skin layers.
Thus, When the skin comes in contact with an irritant, receptors in the skin send signs to the spinal cord.
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Why has the recent climate been beneficial for human human civilization.
Answer:
it has been beneficial because the climate with the environment helps humans to cope with the level of civilization