Answer:
all of the above
Explanation:
You are interested in tracking a particular trait. To begin your studies you do a dihybrid self cross. What percentage of the offspring will be dihybrids themselves
Answer:
4/16 (i.e. 25%)
Explanation:
A dihybrid cross is a cross between two organisms/lines/genes that are hybrids (i.e., heterozygous) for two different traits. In a standard dihybrid cross, there is a relation of complete dominance for both loci, i.e., there are two alleles that are completely dominant and thus mask the effects of the corresponding recessive traits. In a dihybrid cross involving two different genes that assort independently into gametes during meiosis, with dominant alleles "A" and "B" and recessive alleles "a" and "b", respectively, the expected phenotypic ratio will be 9:3:3:1 (ie. 9/16 A_B_, 3/16 A_bb, 3/16 aaB_ and 1/16 aabb), while the expected genotypic ratio of double heterozygous "AaBb" individuals will be 4/16, i.e. 25%.
Representation:
P generation >> AaBb (father) X AaBb (mother)
Gametes (for both parents) >> 1/4 AB; 1/4 Ab; 1/4 aB; 1/4 ab
F1 generation >> 1/16 AABB; 2/16 AABb; 2/16 AaBB; 4/16 AaBb; 1/16 AAbb; 2/16 Aabb; 1/16 aaBB; 2/16 aaBb; 1/16 aabb
What would be likely to happen if a large excess amount of phosphorylated Rb is injected into cells during the G1 phase
Answer:
it would block the S-phase entry and cell growth
Explanation:
The Rb protein is known to be a major G1 checkpoint. Rb is also known to be a tumor suppressor since this protein limits cell proliferation by preventing entry into the S-phase entry and cell growth. When the cell is ready to enter the division phase, Rb is phosphorylated and thus inactivated. In HL-60 cells, it has been shown that the levels of phosphorylated Rb protein increase with progression from G1 to S and to G2/M. This protein acts as a negative regulator that blocks the activity of the E2F transcription factor.
Which two terms describe this type of bone fracture?
simple, incomplete
compound, complete
simple, complete
compound, incomplete
The correct answer is Compound, complete
Explanation:
Bone fractures occur as bones (hard tissue that is part of the skeleton) break, which can be caused by traumatic incidents, certain diseases, among others. Moreover, fractures are classified into different categories such as compound/simple, complete/ incomplete depending on the characteristics of the bone fracture.
In the case of compound fracture, this occurs if the bone is exposed. This means the bone breaks and then displaces causing an open wound. This occurs in the bone fracture from the image because the bone has moved to the left and break the skin, muscle, and other tissue of the area. On the other hand, a fracture is complete is the fragments of the bone are completely separated, which occurs in the image because the bone has been completely divided into two sections.
What is overfishing and how does it threaten coral reefs? Answer using at least 3 complete sentences.
Answer:
overfishing is when there are more fish being fished out o the ocean than the biomass of fish, e.g. in 1970 in the north sea, there was double the amount of kabeljau caught than the biomass. it threatens the coral reefs because a part of the food chain is missing, which has an impact on everything else.
Explanation:
i dont really know if it made sense, im sorry
Need help, asap! Will give away 40 Brainly points!
As one of the resource-rich people in the world, what would you think about a plan that would lower the standard of living for countries rich in resources to make resources last longer?
Answer:
solar panels
Explanation:
Body cell organ of production
Answer:
What is the question here?
put the question in the replies to this answer and I'll gladly help you.
May I have brainliest please? :)
PLEASE HELP I WILL GIVE LOTS OF POINTS !
A student illustrated a model of particles being transported out of the cell. ( image above) what best describes the transport process occurring in the model?
a. energy is used to move sodium ions from low concentration to high concentration
b. sodium ions are moving from low to high concentration without using energy
c. sodium ions are moving from high to low concentration without using energy
d energy is used to move sodium ions from high to low concentration
Answer:
C.
mark me the brainliest if this helps
Explanation:
Simple diffusion is pretty much exactly what it sounds like – molecules move down their gradients through the membrane. Molecules that practice simple diffusion must be small and nonpolar*, in order to pass through the membrane. Simple diffusion can be disrupted if the diffusion distance is increased. If the alveoli in our lungs fill with fluid (pulmonary edema), the distance the gases must travel increases, and their transport decreases. Facilitated diffusion is diffusion that is helped along (facilitated by) a membrane transport channel. These channels are glycoproteins (proteins with carbohydrates attached) that allow molecules to pass through the membrane. These channels are almost always specific for either a certain molecule or a certain type of molecule (i.e. an ion channel), and so they are tightly linked to certain physiologic functions. For example, one such transporter channel, GLUT4, is incredibly important in diabetes. GLUT4 is a glucose transporter found in fat and skeletal muscle. Insulin triggers GLUT4 to insert into the membranes of these cells so that glucose can be taken in from the blood. Since this is a passive mechanism, the amount of sugar entering our cells is proportional to how much sugar we consume, up to the point that all our channels are being used (saturation). In type II diabetes mellitus, cells do not respond as well to the presence of insulin, and so do not insert GLUT4 into their membranes. This can lead to soaring blood glucose levels which can cause heart disease, stroke, and kidney
An eagle is a predator for squirrels. A new law stops humans from hunting
eagles, and the eagle population increases. What will happen to the squirrel
population?
A. The carrying capacity of the ecosystem will increase.
B. The squirrel population will increase.
C. The ecosystem will reach Hardy-Weinberg equilibrium.
D. The squirrel birthrate will decrease.
Answer:
Imma say D
Explanation:
As eagle feeds on squirrels, an increase in the number of eagles, will obviously lead to a decrease in the number of squirrels.
An eagle is a predator for squirrels, a new law stops humans from hunting eagles, and the eagle population increases, so the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.
What is a predator-prey relationship?Eagles are predators of squirrels, and an increase in the eagle population will likely lead to an increase in predation on squirrels. This could result in a decrease in the squirrel population. However, it's worth noting that the relationship between predator and prey populations is complex, and the effect of an increase in the predator population on the prey population will depend on a variety of factors. While an increase in the eagle population due to new laws that prohibit hunting them may have positive implications for their conservation, it could potentially have negative consequences for the squirrel population.
Hence, the most likely outcome is that the squirrel population will decrease due to an increase in eagle predation, which is option D.
Learn more about the predator-prey relationship here.
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Someone help plz like plz
Answer:
expreesiom
Explanation:
exp 90
expe 80
omg ppn
ppn tenzin
ff
fortnite
pubg
1
Select all the correct answers.
Which questions would help determine whether an article is scientifically accurate?
Is the author stating an opinion or a fact?
Does the author have a balanced diet?
O O OOO
Does the author have evidence for the given facts?
How many articles has the author written before?
Does the author like music?
Reset
Next
Answer:
The answers are: does author have evidence 4 given facts..
This is the most important question..Evidence from universities, , .org websites are evidenced with fact scientifically, cited evidence from encyclopedias, dictionaries & doctors.
Answer:
A and C
I hope this helps
Anyone that’s good at science that is willin to help? ... but can I please get an answer ?
Answer:
if c I took the test edunity people
[tex]\huge\boxed{Option D}[/tex]
_____________________________________PEA PLANT:Pea plant has purple color flowers dominant over white color flowers.
Purple flower allele is P
White Flower allele is p
We would get White flower pea plant only when the recessive allele is in DOMINANT condition
_____________________________________CONDITIONS:Hom.ozygous Dominant Alleles: PP (Purple Flower)
Heter.ozygous Dominant Alleles: Pp Purple Flower)
Hom.ozygous Recessive Alleles: pp (White Flower)
_____________________________________CROSS:Whenever we cross Hom.ozygous Dominant(PP) with Heterozygous dominant (Pp), we get all the flowers PHENOTIPICALLY(physical appearance) Purple flower, Because as you can see in the picture,
The P1 is PP
The P2 is Pp
When we cross them,
It has 4 offsprings,
PP purple flower
PP purple flower
Pp Purple flower
Pp Purple flower
Thus the answer is 0% as there is no white flower present
_____________________________________Best Regards,'Borz'A gross anatomy professor requests that the students cut a transverse section from a specimen and place it on a slide, producing a superior view of the section. In which direction would the students cut the specimen, and how would they position the cut section on the slide? (2 points)
Inferior to superior, and place the section left side down on the slide
Inferior to superior, and place the section right side down on the slide
Right to left, and place the section superior side down on the slide
Right to left, and place the section inferior side down on the slide
Answer: D
Explanation:
i just took the test
Answer: it is D
Explanation:
which is a cause of desertification?
A. farming
b. creating reservoirs
c. overgrazing
d. driving motor vehicles?
Answer:
c. overgrazing
Explanation:
your welcome
From which countries have pandemic flu outbreaks originated? Check all that apply.
Russia
Mexico
USA
Canada
Answer: USA, And Russia
Explanation:
which is a non-renewable resource that is used to generate electrical energy?
A.water
B.coal
C.sunlight
D.ores
Answer:
B) Coal
Explanation:
B) Coal
It is coal, bc coal is a non-renewable resource
Doctors determined that babies born at 37 weeks have an increased risk of health problems due to insufficient development. Premature babies may need medical attention to help with respiration, until their lungs fully develop. They may also need to have extra protection from germs, because their immune systems may not be functioning. I would also expect that premature babies weigh less than full-term babies.
Answer:
SOMEEEE MILKKK
Explanation:
if a news article contains bias what should you do?
A.take it as fact
B.read another article on the same topic
C.throw the article away
D.automatically agree with the reporter
Answer: B
Explanation:
Answer:
B!
Explanation:
E d g e 2021
ATP is to your cells as ______ is to a car
Answer:
Gas to a car
Explanation:
The ATP function in the cell is equal to the gas or fuel function in the car, as the ATP gives energy to the cell for different functions like the fuel gives energy to the car to move from one place to another.
What is the function of the ATP?
ATP is produced in the cell from the food that living organisms, such as animals and plants, consume and use to produce ATP. There are different reactions that together make ATP, such as glycolysis, the Krebs cycle, and the electron transport chain, and with the help of ATP synthase, ATP is made. It performs a variety of cellular functions, including protein synthesis, food digestion, message transmission from one cell to another, and so on.
Hence, the ATP function in the cell is equal to the gas or fuel function in the car, as the ATP gives energy to the cell for different functions.
Learn more about the ATP here.
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in your mouth, teeth grind food
a. mechanical
b.chemical
this is an example of mechanical digestion
Answer:
A. mechanical
Explanation:
the food isn't being chemical grinded
For a quantitative trait explained by four loci in an additive fashion, if the four locus genotype AaBbCcDd corresponds to a phenotypic value of 32, and the four locus genotype AABBCCdd corresponds to a phenotypic value of 48, then what is the phenotypic value corresponding to the four locus genotype AABbcCDD?
Answer:
48
Explanation:
In genetics, additive effects represent a mode of quantitative inheritance that occurs when the combined effects of alleles (i.e., the variants of a gene that lead to differential expression of a phenotypic trait) at two or more loci are equal to the sum of their individual effects, contributing thus to the final phenotype. Therefore, the additive variance can be explained by the sum of the individual effects of identified loci/genes that have an additive effect on this quantitative trait. In this case, each gene shows an additive effect (equal to 8 for each dominant allele), thereby the phenotypic value corresponding to the genotype AABbCcDD will be equal to 48 (i.e., 16 + 8 + 8 + 16 = 48).
GORAN
NARGO MYSETS
OMSRANOG
LECL
SUSTIE
Unscramble these words plssss
A species of eels that lives in the ocean can move up rivers to spawn. A freshwater pike is unable to move into the ocean from a river. Based on your knowledge of cellular membranes, explain why eels can move back and forth into the ocean, whereas pike cannot.
Answer:
Eels are a long, thin slimy fish that have a fin that runs the entire lengths of the backs of their bodies, extends around the tail and run for a distance on the underside of the fish. They have a wide and strong mouth. The pike has a long, slender body that is olive green in color and fades to yellowish-white on its belly. The reason for this is because they have diffrent bodies and a eel is small while pikes are big and have more weight.
Explanation:
Hope this helps. Mark me brainlist plzzzzz
Of you get this one right I'll give you a crown
Which plate boundary and movement commonly create ridges, like the Mid-Atlantic Oceanic Ridge? Explain how ridges can be created by plate tectonics.
Answer:
The Mid-Atlantic ridge is an example of a constructive plate boundary.
Explanation:
This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
Answer:
Divergent boundary
Explanation:
This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
which of the following statements best describes how the traits of an organism are determined by the DNA in their cells?
Answer:
C. DNA codes for proteins which allow an organism to grow and function
Explanation:
Deoxyribonucleic acid, commonly known as DNA is the genetic material in living organisms. The DNA stores genetic information, which encodes the formation of useful products (proteins) necessary for the growth and development of that particular organisms. The information in DNA is decoded by a process called GENE EXPRESSION, which encompasses transcription and translation.
Transcription is the process that synthesizes RNA from DNA molecule, while translation synthesizes PROTEIN from the mRNA. Hence, the order which is called CENTRAL DOGMA OF BIOLOGY is as follows: DNA → RNA → PROTEIN.
Therefore, DNA codes for proteins which allow an organism to grow and function best describes how the traits of an organism are determined by the DNA in their cells.
what is a definition and example of Elevation
If i were to jump off a cliff without bending my knees, would i break my legs and/or my spine??
Answer:
If you were to jump off a cliff, you would break both your legs and your spine.
Explanation:
Since you would be landing on your feet when crashing onto the ground/rocks/etc., you would potentially (actually, 99.99% chance) become paralyzed and not be able to move your legs and spine. The five sciatic nerves join at the base of the spine and extend down the back of each leg to the toes. The sciatic nerves connect the spinal cord to many of the leg and foot muscles.
Therefore, since you would be landing on your feet, you damage not only the feet and legs, but also your entire spine, which is also connected to your brain (the spinal nerves that is).
#teamtrees #WAP (Water And Plant)
If one species of an organism in an ecosystem suddenly disappeared, which would be the most likely result?
A
The ecosystem would be destroyed immediately.
B
The ecosystem would not be changed at all.
с
Only one part of the ecosystem would be affected.
D
Many parts of the ecosystem would be affected.
Answer:
D Many parts of the ecosystem would be affected.
Explanation:
brainest plz
Answer:
D
Explanation:
One animal has many different parts in an ecosystem and if it were to be removed it would affect many parts of the ecosystem
Put the following steps in order:
1. Calcium binds to troponin
3. Myosin head is release from actin
5. Electrical impulse (action potential) is
send to sarcoplasmic reticulum
7. Myosin heads are bound to actin
9. ATP binds to myosin head
2.Sarcoplasmic reticulum releases calcium
4. Motor neuron action potential is signaled
6. Tropomyosin moves exposing the active
binding site
8. Acetylcholine is release
10. power stroke/contraction
Answer:
the answer is free points
Explanation:
What compound do organisms get from the air for cellular respiration?
A.Carbon Dioxide
B.Oxygen
C.Water
D.ATP
Answer:
D. ATPExplanation:
During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
Explain how a concentration gradient, a membrane protein, and hydrogen ions work together to provide a mitochondrion with the energy needed to join small molecules together?
During the electron transport, chan energy stored in electrons is used to pump hydrogen protons from the mitochondrial matrix to the intermembrane space. The numbers of protons increase this creates a chemical gradient(because there is a higher concentration of ions) and an electrical gradient(because the intermembrane space becomes more positive than the matrix because of the protons-H⁺). Those protons need to flow towards the matrix for equilibrium to occur. As we know the inside membrane of the mitochondria has a reduced permeability. The main place where protons can diffuse is the ATP-synthase(a protein that turns ADP and inorganic phosphate into ATP). When protons pass through they release the energy necessary for this reaction to occur(ADP+H₃PO₄-->ATP+H₂O)
A concentration gradient, a membrane protein, and hydrogen ions work together to provide a mitochondria with the energy needed to join small molecules together through ATP. The H+ ions are pumped across by membrane “pump proteins” into a space bounded by memb ranes that contain numerous amounts of hydrogen ions. Then, electrons are passed from o ne membrane-bound enzyme to another, which causes some energy to get lost during eac h transfer. This “lost energy” allows the pumping of hydrogen ions against the concentratio n gradient. After all the steps are taken, the mitochondrion will be provided with the energy needed to join small molecules together.