Answer:
Explanation:
The sickle cell allele is recessive. Hence, in order for any child of the couple to have sickle cell anemia, such a child will have to inherit an affected allele each from the two parents. This means that both the father and the mother must have affected alleles in their genotypes. In other words, two sickle cell alleles are required for the abnormality to manifest.
Let us assume that the sickle cell allele is represented by S and the normal allele is represented by A.
Now, it is established that the mother has sickle cell anemia, her genotype would be SS. The father does not have sickle cell, his genotype can either be AA or AS.
Assuming the genotype of the father is AA:
SS x AA
AS AS AS AS
All the children would be normal in this case.
Assuming that the genotype of the father is AS
SS x AS
AS SS AS SS
50% of the children would have sickle cell while the remaining 50% would be normal.
Therefore, in order to produce children with sickle cell, the father has to be AS, otherwise, he has to be AA.
What would happen if I poured a glass of water into a beaker with 90% clay and 10% sand? Would the water rush through the soil or would it move slowly through the soil? Please explain your answer.
Answer:
it would go slowly on the sand but when it touches the clay it will go faster
Explanation:
1 Which of the following levels of organization are in order from least complex to most
complex?
A Organ system = organ = cell molecule
B Molecule cell = organ = organ system
C Cell = molecule = organ system = organ
D Organ = organ system = molecule = cell
Answer:
I believe the answer is B
Explanation:
maybe I get brainliest?
Define: tropical
Plzz help
of, typical of, or peculiar to the tropics
Answer:
when the air within a forest or and area where there are large bodies of water that evaporate is thick with precipitation.
Tropical usually makes people think of the amazon because the humidity is so high that you get hot very easily.
Explanation:
Explain how meiosis results in four haploid daughter cells.
Please help this is due today and I really need help
Answer:
phones
Explanation:
Daughter cells formed by mitosis have exact copies of the parent cell's DNA. What process ensures that is possible?
Daughter cells formed by mitosis have exact copies of the parent cell's DNA. The anaphase process ensures that is possible.
What is mitosis?Cell division occurs during mitosis. All eukaryotic cells go through the process. There are four stages to the process. The cell divides during the procedure. A daughter cell that is identical to the parent cell is created.
Prophase: This is mitosis's initial phase. At this point, the chromosomes begin to compress and the cell begins to break.
This is the second phase, or metaphase. The chromosomes align in the spindle fiber during this stage, and a checkpoint is also established.
Anaphase: At this time, the sister chromatids separate, align, and the chromosomes divide.
The final phase is known as the telophase. The nuclear membrane developed as the nucleus closed.
Therefore, the process that ensures the daughter cells formed by mitosis have exact copies of the parent cell is the anaphase.
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help pls :3
Is the energy transferred to each organism in this food web the same? explain your answer.
Answer:
Is the energy transferred to each organism in this food web the same? Yes
Sperm are produced in the glands sperm duct. testes. urinary bladder.
The testes. A pair of male reproductive glands called the testes can be found in the scrotum, which is a sac-like structure that is found on the exterior of the body.
Sperm and the male hormone testosterone are both produced in the testes, which are responsible for the function of the testes. When the sperm have been created, they pass via a number of ducts, such as the vas deferens, the epididymis, and the ejaculatory ducts, before being expelled from the male organ during the process of ejaculation. On the other hand, the urine bladder is a component of the urinary system, but it does not contribute in any way to the creation of sperm.
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Why does the moon appear in the daytime?
How much does the sky weigh?
PLZZZZZ ANSWERRRRR!!!!!!! link to something rllyyyyy important in the comments!!!!!!
How much the sky weighs-
Answer:
11 billion billion pounds
Explanation:
14.7 lbs per square inch of earth surface which is roughly 11 billion billion pounds.
The moon appears is the sky since the surface of the moon is reflecting the sun's light
Answer:
Hii<3 my other account got deleted lol
Explanation:
Evolution is any change in the heritable traits within a
A. generation
B. population
C. individual
Answer:
B. population
Explanation:
CORRECT
Evolution is any change in the heritable traits within a population. Therefore, option (B) is correct.
What is evolution?Evolution is the process by which populations of organisms change over time through the gradual accumulation of genetic variations. It is the central concept of modern biology and provides a framework for understanding the diversity of life on Earth.
Evolution occurs through the mechanisms of natural selection, genetic drift, gene flow, and mutation. Over time, genetic variations that confer a survival advantage in a particular environment become more common in a population, while those that are detrimental or neutral are selected against.
This process can lead to the emergence of new species, as well as the extinction of others. The study of evolution has practical applications in fields such as medicine, agriculture, and conservation, and helps us understand our place in the natural world.
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WILL GIVE BRAINLIEST PLEASE HELP
You determine that the soil in your backyard is 70% silt, 30% sand, and 35% clay. Is this a good soil to grow crops?
Answer: Yes
Explanation:
I’m not sure why it seems right tho
PLS HELP! ILL GiVE BRAINLIEST!!! LI NK IS BELOW!! JUST COPY AND PASTE IT!!
Explanation:
no link. sorry I can't help
state birth control methods according to Islam view?
Answer:
Barrier methods. Examples include male and female condoms, as well as the diaphragm, cervical cap and contraceptive sponge.
Short-acting hormonal methods. ...
Long-acting hormonal methods. ...
Sterilization. ...
Fertility awareness methods.
How do other organisms benefit from other biotic and abiotic things in tropical rainforest?
Answer:
All of the biotic factors are dependent upon the abiotic factors. ... Water, sunlight, air, and the soil (abiotic factors) create the conditions that allow rain forest vegetation (biotic factors) to live and grow. Organisms like monkeys, bats, and toucans eat the vegetation supported by the abiotic factors.
Explanation:
Biotic things are stuff like sunlight, air, dirt, etc. Plants and animals are abiotic. Abiotics benefit from biotics because they use the air, light, and dirt to function in everyday life.
What two levels of classifying system is part of the scientific name?
Answer:
The genus and species are the final 2 classification that determine a scientific name for an organism
Explanation:
hope this helps. please give a rating
PLs I NEED HELP RN I GIVE U 100 PINTS ITS RLY URGENTT Objectives:
In the lesson, you will:
know the function of major organelles in plant and animal cells
compare and contrast the structure and function of major organelles of plant and animal cells
relate structure to function for the components of plants and animal cells
Big Ideas:
Key Questions and Terms Notes
What are the two main types of cells? What is the difference between these cells?
Use the video to describe the function of each of the following cell structures:
Cytoplasm:
Nucleus:
Mitochondria:
Endoplasmic reticulum:
Ribosomes:
Golgi apparatus:
Vesicles:
Lysosomes:
Cell membrane:
What are organelles?
How are the functions of organelles in animal cells and those in plant cells similar and different?
Draw and label an animal cell.
Draw and label a plant cell.
I WILL REPORT IF U JUST DO IT FOR POINTS AND U JUST PUT NONSENSE
Answer:
1. The two main cell types are prokaryotic and eukaryotic. Prokaryotic cells lack a nucleus and other membrane-bound organelles.
2. Cytoplasm: Cytoplasm contains enzymes that break down waste. It also provides shape to the cell. Cytoplasm enables organelles to remain where they are.
Nucleus: The nucleus controls activity inside the cell. It also carries genes.
Mitochondria: Mitochondria generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate.
Endoplasmic reticulum: The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function.
Ribosomes: The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make proteins.
Golgi apparatus: A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
Vesicles: Transport vesicles help move materials, such as proteins and other molecules, from one part of a cell to another.
Lysosomes: A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.
Cell membrane: The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
3. An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.
4. Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. These structures include: chloroplasts, the cell wall, and vacuoles.
Explanation:
You will have to draw and label your own cells, but I hope this helps!
Answer:
1. The two main cell types are prokaryotic and eukaryotic. Prokaryotic cells lack a nucleus and other membrane-bound organelles.
2. Cytoplasm: Cytoplasm contains enzymes that break down waste. It also provides shape to the cell. Cytoplasm enables organelles to remain where they are.
Nucleus: The nucleus controls activity inside the cell. It also carries genes.
Mitochondria: Mitochondria generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate.
Endoplasmic reticulum: The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function.
Ribosomes: The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make proteins.
Golgi apparatus: A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
Vesicles: Transport vesicles help move materials, such as proteins and other molecules, from one part of a cell to another.
Lysosomes: A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.
Cell membrane: The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
3. An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.
4. Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. These structures include: chloroplasts, the cell wall, and vacuoles.
Explanation:
b Suggest why they
Explain why species need scientific names.
11
Answer:
Scientific names are used to describe various species of organisms in a way that is universal so that scientists around the globe can readily identify the same animal. This is called binomial nomenclature, and many of the scientific names are derived from the Latin name of the organism.
How do ribosomes use mRNA and tRNA to assemble proteins?
Ribosomes are cellular organelles that are responsible for assembling proteins by using messenger RNA (mRNA) and transfer RNA (tRNA).
How do we explain?mRNA is a molecule that contains the genetic code for a protein. It is transcribed from DNA in the nucleus of the cell and then transported to the ribosome.
tRNA is a molecule that carries amino acids to the ribosome. Each tRNA molecule is specific for one amino acid.
The ribosome reads the mRNA molecule and matches the codons on the mRNA to the anticodons on the tRNA molecules. The anticodon is a three-nucleotide sequence on the tRNA molecule that is complementary to the codon on the mRNA molecule.
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Why do we need the respiratory system?
Explanation:
Your respiratory system is the network of organ and tissues that help you breath.This system help your body absorb oxygen from the air so your organ can't work.It also clean waste gases ,such as carbon dioxide from your blood
Can u judge who is the better person out of these 3?..
Mr A - He had friendship with bad politicians, consults astrologers, two wives, chain smoker, drinks eight to 10 times a day..
Mr B - He was kicked out of office twice, sleeps till noon, used opium in college & drinks whiskey every evening..
Mr C - He is a decorated war hero, a vegetarian, doesn't smoke, doesn't drink and never cheated on his wife..
You would say Mr.C
right?
come id - 8418232122 PASS-ROKY to answer the question
Answer:
I mean, it should be Mr. C, he never drank or smoke or cheated on his wife, which makes him a better person than Mr. B and Mr. A.
So I believe it's Mr. C.
Do organisms "decide" to adapt?
A. Yes, they can force mutations in one lifetime
B. No, they adapt by random mutations during their lifetime
C. No, they can't adapt. They either have adaptations or they don't
Answer:
A i think
Explanation:
Natural selection involves organisms trying to adapt. Natural selection gives organisms what they need. Humans can't negatively impact ecosystems, because species will just evolve what they need to survive. ... All traits of organisms are adaptations.
Answer:
Natural selection involves organisms trying to adapt. Natural selection gives organisms what they need. Humans can't negatively impact ecosystems, because species will just evolve what they need to survive. All traits of organisms are adaptations. So, the answer would be A!
I need this answers A,B,C,D
Which of the following is not a characteristic of life?
The ability to move is not a characteristic of life
Hope this helps! :)
Which of the following traits can NOT be inherited? Question 1 options: Eye Color Hair Color Scars Dimples PLZ HELP
Answer:
scars are not inherited
Explanation:
The scars should not be inherited.
What is the meaning of inherited?It is known as genetic disorder. This should be passed from the parent to the child also if there is any change to the DNA so it also be passed. The color of eye, the color of hair, the dimples should be passed from the parent to the child but the scars should not be passed out
Therefore, the third option is correct.
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Please help this is due today!!!!
List and explain the four factors of Darwin’s Theory of Natural Selection.
Answer:
Natural selection occurs if four conditions are met: reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual.
Explanation:
What is the Theory of Evolution?
Charles Darwin is the father of evolution.
His research stated that species originate from one common ancestor.Species change over time- Adaptation
"Survival of the fittest"6. A sound wave has a frequency of 20 Hz and a wavelength of 100m. What is the wave speed?
O 2000 m/s
100 m/s
050 m/s
0.20 m/s
Answer:
eqn: speed = wavelength * frequency
What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.30 m?
speed = 0.3*100 = 30m/s
What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 0.10 m?
speed = 0.1*50 = 5m/s
What is the frequency of a wave that has a wave speed of 20 m/s and a wavelength of 0.50 m?
frequency = 20/0,5 = 40Hz
What is the frequency of a wave that has a wave speed of 80 m/s and a wavelength of 0.20 m?
frequency = 80/0.2 = 400Hz
What is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m?
frequency = 120/0.4 = 300Hz
What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 440 Hz?
wavelength = 340/440 = 0.7727m
What is the wavelength of a sound wave that has a speed of 340 m/s and a frequency of 880 Hz?
wavelength = 340/880 = 0.3864m
What is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 Hz?
wavelength = 250/400 = 0.625m
What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 2.0 m?
speed = 2*50 = 100m/s
What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.50 m?
speed = 0.5*100 = 50m/s
Explanation:
Which is most correct when testing a hypothesis?
A. If the hypothesis is rejected, the experiment was a failure
B. The hypothesis can be proven true
C. The hypothesis can be rejected or accepted
D. All of the above
What happens when there is a bias in an experiment?
A. The result are more accurate
B, personal opinions gets in the way
C. The hypothesis is proved wrong
D. The experiment is not repeatable
Answer:
q1 b
q2 a
Explanation:
point
Look at the materials shown below.
Plant
Gold
Silver
Water
Which of these materials are minerals?
а silver and water
B silver and gold
C plant and gold
D plant and water
Answer:
Silver and gold
Where does sea-floor spreading take place?
a.
convergent boundaries
c.
oceanic volcanoes
b.
transform boundaries
Living organisms include bacteria, protozoans, fungi, animals, and plants. What characteristics do all of these living things share? A. use sunlight for energy B. have nuclei with DNA C. made of one or more cells D. have DNA E. have cell walls F. reproduce
Answer:
F
Explanation:
All those things can reproduce sexually or asexually
Answer: c
Explanation:
all contain cells