An egg with 22 chromosomes that is fertilized by a normal sperm will result in a zygote with normal chromosome number.
Typically, the male and female gametes (sperm and eggs) have 23 chromosomes apiece. However, occasionally an egg will be missing one chromosome because the chromosomes did not adhere to the spindle fibres appropriately during meiosis.
The egg would then only contain 22 chromosomes. A zygote produced from such an egg would have just 45 instead of the typical 46 chromosomes if fertilised by a normal sperm (containng 23 chromosomes). This ailment is known as monosomy.
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The Waldorf family was caught in a fire but escaped. Unfortunately, the father and daughter suffered burns. The father had second-degree burns on his entire chest, abdomen, and both arms, and third-degree burns on his entire left lower extremity. The daughter suffered first-degree burns on her whole head and neck and second-degree burns throughout both lower extremities.
a. What percentage of the father's body was covered by burns?
b. What percentage of the daughter's body received first-degree burns?
c. What part of the daughter's body has both the dermis and epidermis involved?
d. The father experiences a good deal of pain in the area of the chest and abdomen, but little pain in the leg. Why?
Answer and Explanation:
The father had 54% of the body covered by burns, since a little more than half of his body was burned. In addition, to calculate the percentage of body burn, the following values are considered: head, arms and legs - 9% torso front - 18% torso back - 18%. In addition, the father feels little pain in his legs (which had worse burns) because the third degree burn destroys the nerve endings, while the second degree burn only damages these endings promoting intense pain.
The daughter had 9% of her body burned by first degree burns, which corresponds to her lower limbs. These burns involve the skin and the epidermis, for this reason, we can say that the legs are the part of the daughter's body that has compromised hair and epidermis.
What do we call the organized steps taken to answer a scientific problem?
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A deleterious recessive allele is one that can be harmful when it is found in its homgous condition, resulting in a poorly fit phenotype. An example of this is the allelefor sickle cell, which results in the condition known as sickle cell anemia when both recessive alleles are inherited. owever, in regions of Afriche proportion of the sickle cell allele is igher than expected, with as much as 15% of the alleles in the population being the recessive, deleteriou rsion. In the African population, there is also a high prevalence of malaria, a disease caused by the parasitic infestation of a plasmodium protozoan in the blood of humans. The recessive allele for sickle cell has been maintained over many generations. Evaluate the graph above and select the claim that supports the high frequency of the recessive allele in these African populations.
A)There is a selective advantage to the aa genotype, as the presence of sickle cell provides a greater fitness in an environment where malaria is common.
B)There is a selective pressure against the aa genotype, but the presence of malaria induces new mutations which generates more alleles within the population.
C)There is directional selection towards the Aa genotype, since aa is often a lethal condition. Non-random mating tends to maintain the recessive allele in the population.
D)There is a selective advantage to the heterozygous (Aa) condition as there is selective pressure against both the AA and aa genotypes. This maintains the recessive allele in the population.
Answer:
D) There is a selective advantage to the heterozygous (Aa) condition as there is selective pressure against both the AA and aa genotypes. This maintains the recessive allele in the population.
Explanation:
Since the AA condition is more likely to be affected by malaria and the aa condition is more likely to not survive the sickle cell condition, the heterozygote here has the advantage.
The high frequency should be considered the D) There is a selective advantage to the heterozygous (Aa) condition.
Evaluation of the graph;Since the AA condition should be impacted by the malaria and the aa condition should not able to survive the cell condition i.e. sickle.
At the same time, the heterozygote has the advantage.
Also, there is the selective pressure that oppose to the AA and aa genetypes.
Hence, the option d is correct.
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Using compaction and cementation explain why sedimentary rocks are not just a loose pile of sand and rocks.
Compaction and Cementation They are compacted, reducing the available pore space and expelling much of the pore-water. Dissolved minerals in the ground water precipitate (crystallize) from water in the pore spaces forming mineral crusts on the sedimentary grains, gradually cementing the sediments, thus forming a rock.
Through compaction and cementation, minerals form a crusts on the sedimentary rocks which are no longer just a loose pile of sand and rocks.
What are sedimentary rocks?Sedimentary rocks are formed from the pre-existing rocks or pieces of or fossils of living organisms. They form from the deposits which accumulate on the surface of Earth. Sedimentary rocks often have distinctive layering or bedding over Earth.
Dissolved minerals present in the ground water precipitates from the water surface present in the pore spaces forming mineral crusts on the sedimentary grains, which gradually undergo cementing the sediments, which thus lead to formation of a rock.
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An increase in the rate of evolution in a population will be affected by which scenario?
Answer:
Shorter generation times, and warmer environments.
describe the feature of cell mbrane
Answer:
The cell membrane or plasma membrane is a biological and thin semi-permeable membrane that surrounds the cytoplasm of a cell
Explanation:
is x male or female in cell reference
Answer:
An XY chromosome will be a male chromosome pair.
An XX chromosomes will be a female chromosome pair.
Which sequence of events best describes the current theory of the origin of life on Earth?
Answer:
yes
Explanation:
Find the edge length of the cube. (The density of copper is 8.96 g/cm3, and the volume of a cube is equal to the edge length cubed.)
Express your answer with the appropriate units.
Answer:
[tex]x = 2.13\ cm[/tex]
Explanation:
See comment for complete question
Given
[tex]Mass = 87.2g[/tex]
[tex]Density = 8.96gcm^{-3[/tex]
Required
Calculate the edge length of the cube
First, we need to calculate the volume of the cube using:
[tex]Density = \frac{Mass}{Volume}[/tex]
Make Volume the subject:
[tex]Volume= \frac{Mass}{Density }[/tex]
Substitute values for Mass and Density
[tex]Volume= \frac{87.2g}{8.96gcm^{-3}}[/tex]
[tex]Volume= \frac{87.2cm^3}{8.96}[/tex]
[tex]Volume= 9.73cm^3[/tex]
Represent the edge length with x.
So:
[tex]Volume = x^3[/tex]
Substitute x^3 for Volume in [tex]Volume= 9.73cm^3[/tex]
[tex]x^3 = 9.73cm^3[/tex]
Take cube root of both sides
[tex]x = \sqrt[3]{9.73cm^3}[/tex]
[tex]x = 2.13\ cm[/tex] --- approximated
Hence, the edge length is 2.13cm
Select all of the correct purposes for cells undergoing mitosis
How humans use Nitrogen and phosphorus to make more food?
A. Dog foods
B. Fuels
C. Fertilizers
D. Cars
Answer:
C. Fertilizers
Explanation:
If a DNA strand contains 12% thymine, it also contains ____
a. 12% A, 38% G, 38% C
b. 12% A, 12% G, 38% C
c. 12% A, 12% G, 12% C
d. 38% A, 12% G, 38% C
Answer:
If G = 14, then C = 14 and G + C is 28. Thus A + T. The percent of adenine in a double-stranded DNA is 38. Therefore G + C = 100 - 76 = 24, and C = 24/2 = 12 percent.
Explanation:
What is the correct answer I accidentally clicked echo
Answer:
sound waves. they come in longitudinal waves and vibrations. echo is wrong though youre right on that one
When we say that a bulb is fused, what is wrong with the bulb? How can we use it again?
Hey mate !
here is ur answer(refer the image)
thank u ..
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It is said that it is the male who determines the sex of the baby rather than it is the female. From your knowledge of the sex chromosome, is it true?
Answer: yes because they have xy chromasomes so they have to give one of them
Explanation:
state whether bone is dead or living tissue, explain your answer
what is types of tissue
Answer:
pls give me brainlest There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues). Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).
Answer:
There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues). Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).
Hope it helps!!!
Which of the following correctly explains the differences between artificial and natural selection?
Not sure what the options are, but artificial selection would be when farmers/breeders choose only to plant/breed the organism with desired characteristics in order to cause the evolution of the trait while natural selection is when organisms that are better adapted to their environment usually survive and produce offspring, causing the evolution of their traits which help them to survive.
Hope that helps!
Explain what happens to the enzyme activity of Pepsin as the alkalinity increase.
In humans, normal color perception (N) dominates the expression of color blindness (n), and both of these genes are carried on the X chromosome (XN or Xn). A woman with normal color vision has a color-blind father. Her husband is also color-blind.
a. What is the genotype of the colorblind man? ____
b. What is the genotype of the woman? ______
c. What is the probability of her daughter to be colorblind? __________%
d. What is the probability of her sons to be colorblind? _________%
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A congenital cataract is a clouding of the lens of the eye that is present from birth. The mode of
inheritance for one type of congenital cataract is from a dominant allele. Suppose a man is
heterozygous for this type of congenital cataract, and a woman does not have cataracts. If these two
individuals have a child, what is the probability that the child will have this type of congenital cataract?
a. 25%
b. 50%
c. 75%
d. 100%
Answer:
The mode of inheritance for one type of congenital cataract is autosomal dominant. If these two individuals have a child, what is the probability that the child will have A male with horns is mated with a heterozygous female without horns.
What are general traits of a specialist species?
Answer:
fvgvurhufv
Explanation:
How are astronomers able to determine what elements are found in other stars and galaxies?
Answer:
This type of study is called spectroscopy. The science of spectroscopy is quite sophisticated. From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star.
Explanation:
If a segment of DNA that contains 500 nitrogen bases contains 100 cytosine nucleotides, how many adenine, guanine, and thymine nucleotides would be present
Answer:
The perecentage of guanine is 30%
Why do you feel like personal organisation is a struggle or strength?
Answer:
It can be a struggle because you won't have the determination to sometimes take time to organize things.It can be a strength because being organized can make you less stressful. (Ex: You can find your car keys better.) or (Ex: I rember what assignment is due on friday!!)
Explanation:
It can be a strentgh when handling emotions and it can make you smarter. Less things are going on in your mind.
It can be a struggle because life is automatically busy.
Hope this helps!!
Guide Questions: (just in case I didn't asnwer the question well)*questions to help answer the question
What is personal organization?
Do you struggle with personal organization?
Is personal organization your strength?
Is personal organization a strength?
Are there reasons to why you think personal organization is a strength?
Is personal organization a strength?
Are there reasons to why you think personal organization is a struggle?
How can humans reduce
the impact of a storm surge?
Explanation:
reducing the impact Global climate change may result in increased storm surge flooding in some areas, through intensification of the cyclones driving the storm surges and as a result of sea level rise. Mangroves can reduce storm surge water levels by slowing the flow of water and reducing surface waves.
3. If an engine exerts 250N of force and moves an object 6.0 meters, how much work did it do? 06
(1 Point)
O 0.024 J
C
42 J
O 41.6 J
O 1500 J
Answer:
1500J
Explanation:
work =force *distance
250*6=1500
Which activities cause environmental pollution in your locality.Write how you can help to avoid them
Answer:
Activities cause environmental pollution is AIR POLLUTION
Can avoid by:
•Conserve energy at home at work,everywhere.
•Use public transportation or walk whenever possible.
•Keep car, boat and other engines properly tuned.
•Mulch or compost leaves and yard waste.
•Consider using gas logs instead of wood.
The activities that cause environmental pollution in my locality are the excessive usage of vehicles that emits a huge amount of carbon, excessive utilization of polythenes, and no proper method of waste treatment.
What is Environmental pollution?Environmental pollution may be defined as any sort of unwanted contamination or impurities present in the atmosphere that is harmful and toxic to the health of each and every living organism. It is one of the most threatening problems for the whole world that affects the overall diversity of living entities and ecosystems.
You can avoid all the activities listed above by following mechanisms:
Increase the use of electric vehicles rather than petrol or diesel vehicles. Enhance the utilization of poly bags that are easily decomposable and cause less harm to the land and soil. Installations of some authorized and trusted mechanisms for waste treatment.Therefore, it is well described above.
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1. All living things have a limited lifespan.
True
False
Answer:
True
Explanation:
Humans have a life span of 60 - 80 years while trees have a life span 1000 - 2000 years, also rats , camels , mosquito, earthworm have a limited lifespan.
PLS I HAVE 5 MINS ILL GIVE BRAINLIEST
Answer:
c
Explanation: