Answer:
On average, women with an altered BRCA1 gene have a 50 to 85 percent risk of developing breast cancer by age 70. Their risk of developing ovarian cancer is 40 to 60 percent by age 85. A woman with cancer in one breast has a higher risk of developing cancer in the other breast.
In the 1950s, Stanley Miller performed experiments to study the origins of life. He created an atmosphere rich in methane, hydrogen, ammonia, water, and simulated lightning. Which substances were most likely produced during Miller’s experiments?
A. protists
B. bacteria
C. amino acids
D. RNA strands
Answer:
c. amino acids
Explanation:
The substances most likely produced during Miller's experiments would be amino acids.
In their simulation of the early atmosphere, Stanley Miller was able to obtain a mixture of organic compounds in the broth with the major one being amino acids.
The discovery of Stanley Miller gave further credence to the chemosynthetic theory of the origin of life because amino acids form the building blocks of proteins and proteins are essential for the onset of life.
More on the origin of life can be found here: https://brainly.com/question/10527581?referrer=searchResults
Radiometric dating allows us to determine...
a. Which rock layers are the oldest.
b. The relative ages of the layers of rocks and the fossils within
them.
c. The exact or absolute age of rock layers.
d. A and B are correct.
e. A and C are correct.
Answer:
a and c are the correct answer so option E. thank you .
What type of transport is being shown in the image below?
Glucose molecules
O Osmosis
O Facilitated diffusion
O Diffusion
O Active transport
Please help me!!!!!!!!!!!!
Answer:
third one because it has all steps of the food chain
When the solution contains the same number of particles as what’s in the cell ______________
Answer:
isotonic solution
Explanation:
Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers; all of the first generation of the offspring have red, axial flowers. The genes for flower color and location assort independently. If 1,000 second generation offspring resulted from the cross, approximately how many of them would you expect to have red, terminal flowers
Answer: 750
Explanation:
Based off the first two sentences, we can conclude that red is the dominant allele and white is the recessive allele.
Let's say R = red and r = white.
The genoytypes of the parents are RR and rr. The genotype of the first generation are all Rr
The punnet square for the second generation is:
R r
R RR Rr
r Rr rr
We can see 3/4 crosses give us red. Now we can multiply 3/4 and 1000 to get 750.
What is copied during replication?
O CRNA
O tRNA
O DNA
O mRNA
Answer:
DNA is copied during replication
Answer:
C
Explanation:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.To accomplish this, each strand of existing DNA acts as a template for replication.
Water birds cannot fly. Please select the best answer from the choices provided T F
( Biomedical Science )
if we have a mouse with red eyes and short white fur and another with long brown hair and brown eyes then what will the little mouse genetics be?
What did Erwin Chargaff discover?
Answer:
Erwin Chargaff was one of those men, making two discoveries that led James Watson and Francis Crick to the double helix structure of DNA. At first, Chargaff noticed that DNA – whether taken from a plant or animal – contained equal amounts of adenine and thymine and equal amounts of cytosine and guanine
Which of these decomposers has a muscular foot to move around that are found worldwide wherever there is sufficient moisture and who eat plant particles from rocks, soil, seaweed and other objects, and eat animals that don't move. They recycle nutrients in your garden after digesting the rotting plants after the harvest.
Question 1 options:
fungi
snail
earthworm
pill bug
Answer:
thats a whole l
Explanation:
what was the role of revivalists of the second great awakening in the abolitionist movement? A. the revivalists of the second great awakening were against the abolitionist movement. B. many of the revivalists of the second great awakening campaigned against slavery. C. revivalists preachers didn't believe in slavery. D. most revivalists taught their enslaved people to preach to the American Indians.
Answer:
Im pretty sure it b
Explanation:
The tutorial said so
Answer:
The answer would be b
Explanation:
1. Wave speed depends on the type of wave, the _______ , and the medium the wave is traveling through
Is a person who inherits a single allele for Huntington’s disease likely to develop the disorder? If so, when during his or her lifetime?
Answer:
Huntington's disease is caused by an inherited defect in a single gene, meaning yes it is likely. more likely will get symptoms between the ages of 30-40s
≛ Someone please help me!! ≛
Answer:
the answer is a im pretty sure
Explanation:
PLEASE HELP...GOD WILL BLESS YOU!
Is the mutation causing lactase persistence in a person of African descent likely to be different from that in a person of European descent? Explain.
:D
Answer:Hey im help you , download socratic and take a picture of the wuestion and boom is what i’ve used my 4 years of high school and its wonderful
Explanation:
which event Mark's the beginning of dna replication
Which is the best example of a response to an external stimulus?
drinking water after a long run
avoiding the sun by looking for food at night
a hungry bear hunting for food
falling asleep in the treetops of a forest
Answer:
its a or b most likely a tho
Explanation:
Answer: B
Explanation:
Explain what process the plant cell does that an animal cell does not.
Answer:
photosynthesis
Explanation:
using the chloroplast from the plant cell
What processes need to occur in order for weathered pieces of a metamorphic rock to transform into a sedimentary rock?
A
heat and pressure
B
melting and cooling
C
cementation and compaction
Answer: C. Cementation and compaction
Explanation:
Sedimentary rock is formed when pieces of rock get trapped and buried. If its buried deep enough it is compacted and cemented into sedimentary rock.
Hope this helps :)
True or fasle? Cells have to divide when becoming too large so that the cell can
maintain homeostasis.
Answer:
True
Explanation:
The cell has to dividewhen it comes to large, because the cell wall is not big enoughtpo maintain all inside the cell when to large.
where does transcription take place in eukaryotic cells
Answer:
Transcription occurs the nucleus of eukaryotic cells
A trait that occurs in 900 individuals out of a total of 1,800 individuals occurs with a probability of
Answer: 25
Explanation: I hope this helps you out <3
A trait that occurs in 450 individuals out of a total of 1,800 individuals occurs with a probability of 25.
How do the plates and mantle interact at this divergent boundary of plate boundary?
Answer:
The mantle will fill in the gaps with molten rock that are caused by the two plates moving away from each other at the divergent boundary. The molten rock would soon harden and become apart of the two plates plates.
In what direction do substances diffuse across the cell
membrane?
Answer:
Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient." The end result of diffusion is an equal concentration, or equilibrium, of molecules on both sides of the membrane.
Explanation:
What is the distance and displacement? pls
Answer:
Distance
is a
scalar quantity
that refers to "how much ground an object has covered" during its motion.
Displacement
is a
vector quantity
that refers to "how far out of place an object is"; it is the object's overall change in position.
When a person bends a glow stick a small chamber inside it breaks releasing a substance that reacts with other substances inside a glow stick the reaction takes place causing the glow stick to glow. What type of energy transformation is this
Answer:
B i have done this before and it went on my tounge
Explanation:
The energy transformation in a glow stick is a chemical to light energy transformation.
What happens when the chamber inside the glow stick is bent?When the chamber inside the glow stick is bent, a small glass vial containing a chemical mixture breaks, and the chemicals inside mix with each other. This chemical reaction results in the production of light energy in the form of a glowing light stick.
The chemical reaction inside the glow stick involves the oxidation of a dye molecule, which releases energy in the form of light. The dye molecule is activated by the energy released from another chemical reaction that occurs between hydrogen peroxide and a phenyl oxalate ester. This chemical reaction releases energy in the form of heat, which excites the dye molecule and causes it to release light.
Therefore, the energy transformation in a glow stick involves the conversion of the potential energy stored in the chemicals inside the glow stick into light energy. This is an example of a chemical to light energy transformation.
Learn more about energy transformation at:
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Which of the following energy producing technologies can be beneficial to soil quality
A. Biomass
B. Solar
C. Wind
D. Oil
Answer:
Both solar energy and wind energy are beneficial to soil quality. They are not using fossil fuels that both harm the soil with digging and fracking, but also are not being burnt which harms the air and can create acid rain. Both solar and wind are using nature to benefit the world. As long as the sun keeps burning and the world turning, we will continue to be able to use them.
The Canadian lynx and the snowshoe hare have a predator-prey relationship. You will use two sets of population data and present them in a single graph.1.Using the second picture below,label the x-axis ‘‘Year of Study’’.Label the x-axis with data listed in the first picture.
2.Based on the sizes of the numbers for each population, create a scale on the two separate y-axes.
From the markings that you had written and erased on your graph, it seems that you already have an idea of what you're supposed to do. Is it that you're having trouble scaling your graph on the provided sheet given the particular data? Or do you have a conceptual question with respect to the instructions?
I've provided the image of the graph according to my understanding of the instructions as stated in 1 and 2, and I've also attached the corresponding Excel spreadsheet that I used to create the graph. While the blank grid that you've attached doesn't scale identically to my graph, it should be possible to transpose the necessary elements into your grid to an acceptable approximation.
That said, please feel free to let me know if you have any clarifications, comments, or questions.