Answer:
A
Explanation:
An individual always has two alleles for the same gene (one on each chromosome). The statement which is true is "a person's two alleles may be the same, and they may be different". Thus, the correct option is C.
What are alleles?An allele can be referred to as an alternative form of a gene. An allele is located at a specific position on a specific chromosome. These alleles can be passed on from the parents generation to their offspring through the process of sexual reproduction.
The presence of two identical alleles at a particular gene locus (chromosome) is referred to as a homozygous genotype. This may include two normal alleles or two alleles that have the same variant. The presence of two different alleles at a particular gene locus is referred to as a heterozygous genotype.
Therefore, the correct option is C.
Learn more about Alleles here:
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Which area on the earth experience the largest difference between summer and winter?
Answer:
North Pole
Explanation:
The surface of the Earth is inclined perpendicular to the sunlight (as in the left hand side of figure 2), and so receives the maximum amount of sunlight per square area. The situation is most extreme at the north and south poles. At the north pole, the season is one long,cold night which last for six months.
Ou just read an article on the Endosymbiotic Theory. Based on what you read, what is the importance of the Endosymbiotic Theory?
Answer: The endosymbiotic theory suggests that eukaryotic organisms evolve from primitive prokaryotic organisms.
Explanation:
According to the endosymbiotic theory the organelles like mitochondria and chloroplast in the eukaryotic cells have arisen from aerobic bacteria. The aerobic bacteria being prokaryotic cell was consumed by the anaerobic bacteria or prokaryotic cell.
The following are the evidences of the origin of eukaryotic organisms from prokaryotic organisms:
1. The chloroplast and mitochondria have circular DNA like bacteria.
2. The mitochondria and chloroplast reproduce through binary fission which also occurs in bacteria.
Answer:
The Endosymbiotic Theory states that the mitochondrion and chloroplasts were consumed by a cell and now depend on one another to survive. Endosymbiotic Theory helps us by giving us the technology to use forensic sciences to solve cold cases.
Explanation:
Why is sugar considered a compound?
Answer:
It is a compound because it has 2 or more element joined together. In this case it is hydrogen/oxygen and carbon.
Explanation:
Being active at night and sleeping in burrows during the day is an adaptation of many animals living in the _____________
what is four types of evidence that is used to determine evolutionary relatedness
Answer:
Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.
Explanation:
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Answer: B When cold air moves into a warm air mass.
Explanation: As a cold front moves into an area, the heavier (more dense) cool air pushes under the lighter (less dense) warm air, causing it to rise up into the troposphere.
state mendels laws and exlain the law of purity of gametes
Answer:
Blending. Hint:Mendel's law of purity of gametes states that the unit factors are brought together and paired during fertilization, however, these unit factors do not affect or mix with each other though they have become paired.
Explanation:
Which function of the integumentary system is illustrated in the release of sweat? A. Absorption B. Protection C. Sensory Reception D. Regulation E. Secretion F. Both regulation and secretion
Answer:
F. Both regulation and secretion
Explanation:
Through sweat glands and superficial blood vessels, the skin is able to cool the body and regulate its internal temperature.
The eccrine sweat gland, which is controlled by the sympathetic nervous system, regulates body temperature. When internal temperature rises, the eccrine glands secrete water to the skin surface, where heat is removed by evaporation.
The spectrum of a distant star contains sodium lines that are offset from their normal position, as shown. What is the most likely explanation?
Sodium spectra
A. The star is relatively hot.
B. The star is relatively cool.
C. The star is moving rapidly toward us.
D. The star is moving rapidly away from us.
Answer:
Explanation:
C
What are the proper attire as part of personal hygiene.
1.
2.
3.
4.
5.
plsss ASAP
Answer:
This may be coats, aprons, gloves, hairnets, beard nets and footwear. Clothing, footwear and headwear must be in good, clean condition. Hairnets must be worn by everyone. Any facial hair (beards and moustaches) must be covered by a beard net.
Explanation:
i hope you understand better
What is the difference between an objects structure and its function
HELP
Answer: The objects structure is like the base,the function is what its used for : >
Between males and females, who is more likely to receive a sex-linked disease and why?
a - Males because they have a Y chromosome
b - Females because they have Xs
c - Males because they only have one X
d - Females because they do not have a Y
You are concerned that your significant other cheated on you and they are not the mother/father of the baby! Luckily for you, you know all about blood typing and how it works. Your baby is type B blood. You are type A blood. You think your significant other is type A blood. Is your significant other faithful? Explain using a Punnett square how you know.
Here is some info from the red cross...Universal donors are those with an O negative blood type. Why? O negative blood can be used in transfusions for any blood type.
Type O is routinely in short supply and in high demand by hospitals – both because it is the most common blood type and because type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.
Approximately 45 percent of Caucasians are type O (positive or negative), but 51 percent of African-Americans and 57 percent of Hispanics are type O. Minority and diverse populations, therefore, play a critical role in meeting the constant need for blood.
Types O negative and O positive are in high demand. Only 7% of the population are O negative. However, the need for O negative blood is the highest because it is used most often during emergencies. The need for O+ is high because it is the most frequently occurring blood type (37% of the population).
The universal red cell donor has Type O negative blood. The universal plasma donor has Type AB blood. For more about plasma donation, visit the plasma donation facts. There are very specific ways in which blood types must be matched for a safe transfusion. The right blood transfusion can mean the difference between life and death.
Every 2 seconds someone in the US needs a blood transfusion.
Use the interactive graphic below to learn more about matching blood types for transfusions.
Also, Rh-negative blood is given to Rh-negative patients, and Rh-positive or Rh-negative blood may be given to Rh-positive patients. The rules for plasma are the reverse.
Answer:
Type O is routinely in short supply and in high demand by hospitals – both because it is the most common blood type and because type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.
Approximately 45 percent of Caucasians are type O (positive or negative), but 51 percent of African-Americans and 57 percent of Hispanics are type O. Minority and diverse populations, therefore, play a critical role in meeting the constant need for blood.
Explanation:
A pure breed of roses always produces red flowers. The sudden appearance of a
yellow rose on this plant would be evidence of
O segregation
O mutation.
O grafting
O dominance.
How do symbiotic and predatory relationships differ
Answer:
A symbiotic is a relationship where both sides benefit. Only the predator benefits in a predatory relationship.
Explanation:
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At what point in cellular respiration is glucose completely oxidized to carbon dioxide?
Question 6 options:
a)
Glycolysis
b)
Intermediate step
c)
ETC
d)
Citric acid cycle
Answer:
LETTER A
Explanation:
During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP
Explain Kelpers three laws of motion
Answer: There are actually three, Kepler's laws that is, of planetary motion: 1) every planet's orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is proportional to the cube of the semi-major axis of its
Explanation:
Why does planting cover crops help conserve soil?
A. plants take up nutrients from soil.
B. Cover crops help remove pollution from the soil.
C. Uncovered soil is easily eroded by wind and water.
D. Cover crops sell for more money that farmers can then use to invest in new soil.
Answer:
A. plants take up nutrients from soil.
Explanation:
A cover crop slows the velocity of runoff from rainfall and snowmelt, reducing soil loss due to sheet and rill erosion. Over time, a cover crop regimen will increase soil organic matter, leading to improvements in soil structure, stability, and increased moisture and nutrient holding capacity for plant growth.
Why does a scientist need to use a special microscope to view how Adams are arranged in clear substance
help me give this answer bord near
12)Give reasons:
a)mining leads to pollution
b)fossils fuel on burning create air pollution.
c)dams do not always have positive effects
Answer:
too hard.................:............
Witch of the following would most likely produce a earth quake
Answer:
the earthquake is held mostly is soft rock which is sleeping with each other
HELP QUICK-Which of the following is true regarding the atoms involved in a chemical reaction?
The same number of each type of atom will always be present before and after a chemical reaction takes place.
Some of the atoms present before the reaction will always be lost during a chemical reaction.
Some of the atoms will always be changed into a different type of atom by a chemical reaction.
During a chemical reaction, atoms will always be combined into much larger molecules.
Answer:
The same number of each type of atom will always be present before and after a chemical reaction takes place.
Explanation:
The topic is genetics
Answer:
Heterozygous
Explanation:
Heterozygous mean 'different' and homzyg mean 'same'. They have Bb, they are 2 different alleles so its heterozygous.
Compare and contrast transcription and translation.
Answer:
Transcription is the synthesis of RNA from a DNA template where the code in the DNA is converted into a complementary RNA code. Translation is the synthesis of a protein from an mRNA template where the code in the mRNA is converted into an amino acid sequence in a protein.
Look at the sketches. The sketch on the top is of a
fish embryo, and the sketch on the bottom is of a
chicken embryo.
Which of the following statements is the best
explanation for why the embryos look so similar,
considering how different an adult fish and chicken
are?
Answer:
“Fish and chickens share a common ancestor “
Explanation:
Answer:
fish and chicken share a common ancestor
Explanation:
During metaphase II, do homologous chromosomes pair up as in metaphase I?
Answer:
No
Explanation:
They pair up in metaphase 1 not 2
Gametes (sex cells) in the flower require nutrients from the soil to ensure proper functioning. Which list of systems below best describes the interaction in that statement?
Answer:
There is a great interaction between reproductive stage and absorption of nutrients.
Explanation:
Good interaction of reproductive stage and absorption of nutrients from the soil is very important for producing good and healthy flowers because reproductive stage needs nutrients. If these nutrients can't available in the soil so the plant produced less flowers and as a result less seeds are produced in the end of this reproductive stage so we can say that reproductive stage and absorption of nutrients has a great interaction between each other.
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What two elements are used to produce energy during nuclear fission?
A. Petroleum and Uranium
B. Petroleum and Hydrogen
C. Plutonium and Uranium
D. Hydrogen and Uranium
Answer:
C Plutonium and Uranium
Explanation:
u Uranium and plutonium are commonly used elements that produce energy during nuclear fission.
Petroleum is used to produce energy for transportation, heating and electricity, not nuclear fission
A male with hemophilia (recessive, sex-linked) and a female who is normal (no hemophilia) have a girl? What is the likelihood that a girl will have the disorder?
a - 0%
b - 50%
c - 100%
d - Impossible to tell
Answer:
Option A is the correct answer.
- 0%
Explanation:
This is because the male is hemophilia recessive, not dorminant and the female allele has no traits of hemophilia therefore, the offspring have zero percent of having the diseases. The girl allele will be normal and recessive of hemophilia. Because there is no dorminant allele that can result into hemophilia.
In what way are cell biologists and molecular biologists similar?
O Both types of biologists work in zoos and laboratories.
O Both types of biologists study animals exclusively.
O Both types of biologists study microscopic materials.
O Both types of biologists require a PhD in biology.
Answer: microscopic materials
Explanation: