Answer:
The correct answer is - it is due to the case of sex-linked recessive disorder.
Explanation:
It is pointed out by the doctor that Sam has a condition due to recessive allele and it is given that boys have this condition more than girls which suggests that it is a sex-linked recessive disorder. This comes from their parents but it is given that the father has normal hair which means the father has no recessive allele, then it must come from the mother even mother has not this condition but she could be a carrier for this trait.
Joe and his sister do not have this condition as they get the normal dominant allele from mother and father.
The chances of being a carrier by his sisters are 50%. If Joe marries
IF Joe marries a non-carrier woman, he will have all normal children with no green hair. IF Joe marries a normal hair color carrier women then there would 25% chances of being diseased offspring and 50% chances of being a carrier, and if women is completely normal then all offspring will be normal.
carrier woman, his children will have a 25% chance of being green-haired. A 25% chance of being
IF Sam marries a normal woman, the children will have a 25% chance of being a carrier, a 25% chance of being green-haired, and a 50% chance of being normal.
biolofy help questions
help pls.
Answer:
2:a
3:b
Explanation:
Meiosis Produces 4 haploid daughter cells from a diploid mother cell. This is important for genetic variation when producing gametes (egg and sperm cell). Mitosis produce 2 diploid daughter cells that are exactly the same
Evolution Quick Check
Which of the following principles is NOT part of Darwin's theory of evolution by natural selection?
Evolution is the biological and chemical changes that occur over generations that results in the variation of the observable traits in the organism. According to Charles Darwin evolution happened because of natural selection and many other factors.
Mutations are the ultimate source of genetic variation.
What did Darwin's theory state?Charles Darwin gave the theory of evolution and natural selection in which the major points were variation, lineage, preference and duration.According to his theory mutations are not the ultimate source of the genetic variations as natural selection and many other factors play roles in the variation and speciation.Therefore, option C is correct and is not part of the theory.
Learn more about Darwin's theory here:
https://brainly.com/question/9035409
DUE SOON PLZ HELPP!!!!!!!!
Which of the following is an example of a step in an EXPERIMENTAL scientific investigation?
A. Recording the sound of a test tube breaking
B. Placing test tubes in a water bath
C. Nothing a color change in a test tube
I really need help in biology please
Answer:
What is the genotype for a h0m0zygous dominant plant? PP
What is the phenotype? Purple plants
What is the genotype for a h0m0zygous recessive plant? pp
What is the phenotype? White plants
What is the genotype for a heterozygous plant? Pp
What is the phenotype? Purple plants.
What is the genotype for a h0m0zygous dominant for freckles? FF
What is the phenotype? Freckles
What is the genotype for a h0m0zygous recessive for freckles? ff
What is the phenotype? No freckles
What is the genotype for a heterozygous individual for freckles? Ff
What is the phenotype? Freckles.
Each individual has two alleles for a given gene.
For example, the allele dimples are dominant. How would you represent this allele? With capital letters, for example, DD.
The allele for no dimple is recessive. How would you represent this allele? With lowercase letters, for example, dd.
The allele for brown eyes is dominant. How would you represent this allele? With capital letters, for example, BB.
The allele for blue eyes is recessive. How would you represent this allele? With lowercase letters, for example, bb.
PP: h0m0zygous dominant; Yy: heterozygous; Ss: heterozygous; bb:h0m0zygous recessive; FF: h0m0zygous dominant
Explanation:
Every being, such as plants, animals, or humans, have two different copies of a gene. These are alleles. These copies can be dominant or recessive.
Dominant genes are the ones that we will see. They "hide" the recessive gene. Recessive genes are the ones that we will only express if the two alleles are recessive since there is no dominant gene that hides the other.
Genotype is the genes that an individual or animal has. We can not see it. For example, a person can have a dominant trait for blue eyes and a recessive trait for brown eyes (Bb)s. In other words, it is the genetic information that a person carries. The phenotype is what we can see of a trait. Following the previous example, the dominant trait is blue eyes, and the recessive is brown, so the gene that will express itself is blue eyes, and we will able to see it.
The pair of alleles can be h0m0zygous and heterozygous. H0m0zygous is when the two traits are the same, for example, BB or bb. Heterozygous is when the traits are different, like, Bb.
Pea plants have two flower varieties where purple is dominant over white. The dominant trait, we represent it with a capital letter, in this case, P, because it is the first letter in purple. The recessive trait we represent it with a lowercase letter, in this case, p.
The genotype for a h0m0zygous dominant plant would be PP. We have to remember that the genotype is the information that the plant carries. If this information is h0m0zygous, it means the two alleles are the same, and if they are both dominant, we write capital letters. The phenotype is what we can see of the information; the gene that it is expressed, in this case, would be the color purple.
A h0m0zygous recessive plant has two alleles with the same information, and as they are recessive, we write two lowercase letters (pp). The genotype would be white plants since there is no dominant allele that covers the recessive one.
In a heterozygous plant, the traits are different. We have the dominant trait purple (P) and the recessive trait white (p). The dominant is the one that will express itself and the one that we will be able to see, see in a purple plant.
The following questions are similar to the first one. We know that freckles are a dominant trait, so we use a capital letter to represent it (F) and a lowercase letter to portrait the recessive trait, which is no freckles (f).
A h0m0zygous dominant means that the two alleles are the same and that one does not hide the other so, the genotype would be FF, and the phenotype would be a person with freckles.
If the person is h0m0zygous recessive, it means that it has the same traits, but one allele does not hide the other. The genotype would be ff, and the phenotype would be no freckles.
In the last case, the person is heterozygous, which means that it has one dominant and one recessive allele. The dominant allele will express itself; the genotype would be Ff, and the phenotype freckles.
In the following questions, we know that we represent dominant alleles with capital letters and recessive ones with lowercase letters, if it is a dominant allele for brown eyes, we write BB, taking the first letter of the dominant trait, in this case, brown. If it is a recessive trait, we write lowercase letters, in this case, bb for blue eyes.
In the last set of questions, we have to observe the letters to find the genotype.
PP, FF: the two letters are the same, which means that the allele is h0m0zygous. Also, they are both in capital letters, so they are dominant traits. Yy, Ss: the two letters are different, one is in capital letters, and the other is not. The allele is heterozygous. bb: the two letters are the same, so they carry the same information. They are h0m0zygous. Both of them are in lowercase, so they are recessive alleles.
When is the carbon stored in plants released?
a. during cellular respiration
b. during photosynthesis
c. when they die
d. none of the above
Please select the best answer from the choices provided
Ο Α
B
Answer:
The answer is C.WHEN THEY DIE dont go with a or b both are wrong just did it rn
Explanation:
The answer to this question is, C. When they die.
ExplanationEdge 2023Which combination correctly pairs a product from a reaction in the nitrogen cycle with a molecule synthesized by plants using that product
Answer:
(A) nitrates—proteins
Note: The question is not complete. The complete question is given below:
Which combination correctly pairs a product from a reaction in the nitrogen cycle with a molecule
synthesized by plants using that product?
(A) nitrates—proteins
(B) ammonia—carbohydrates
(C) nitrogenous wastes—nitrites
(D) atmospheric nitrogen—nitrates
(E) atmospheric nitrogen—ammonia
Explanation:
The nitrogen cycle refers to the cycle through which nitrogen is transferred for use through both living and non-living things, involving the atmosphere, soil, water, plants, animals and bacteria.
The nitrogen cycle is especially important for living things because nitrogen is essential for the formation of amino acids which form proteins.
The nitrogen cycle occurs in five stages:
1. Nitrogen fixation - Nitrogen gas from the air is converted to nitrate compounds by nitrogen-fixing bacteria in soil or root nodules. Lightning also converts nitrogen gas to nitrate compounds.
2. Nitrification - Ammonia is converted to nitrates by nitrifying bacteria in the soil.
3. Assimilation - Plants absorb nitrates from the soil and use them to make proteins. The plant is then eaten by an animal and are used to produce animal protein.
4. Ammonification- Decomposers break down the bodies of dead organisms, urine and faeces converting them to ammonia in the soil, which is then converted to nitrates by nitrifying bacteria.
5. Denitrification - Denitrifying bacteria in the soil break down nitrates and return nitrogen back to the air.
From the above stages and the options provided, the correct option is A - nitrates from the nitrogen cycle is converted to protein by plants.
What's something you liked or found interesting about any one of the episodes of the aquarium? (Make sure to write at least 4 sentence).
Answer:
An interesting episode of the aquarium I had was seeing a dolphin show. The dolphin was super smart, and I have to admit it was smarter than me. I mean I was like 3 when I went there so, I guess that is normal? Anyways, the dolphin was doing cool tricks like twist jumping, and even I tried it but failed. The dolphin went to the worker when the worker called its name. I learned that day that you shouldn't underestimate dolphins because they are smart.
Explanation:
This is an example, so do not copy. You may get inspired.
1 sentence:introduction(aka what you liked or found interesting stuff about the aquarium)
2-4 sentence:the main area(talking about what happened)
1 sentence:conclusion
A(n)\ is an area of the planet that shaves similar conditions of climate, fauna (animal life), flora (plant life) and geography .
1.biome
2.environment
3.habitat
4.ecosystem
[tex] \bold{biome }[/tex]
⭐----------------------------------------------------------------------------------------------✄ ----------------------------------------------------------------------------------⭐
BRAINLYMENTALMENTE
What type of physical evidence is acquired through the senses
help quick
Answer:
Empirical evidence is information acquired by observation or experimentation.
Explanation:
I hope it will help you
The difference in charge across the membrane is called the . It is measured in . At resting potential, the charge of the outside of the neuron is and the inside is . Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) . This causes the charge outside the cell to temporarily become and the inside to temporarily become . When the action potential arrives at the axon terminal it reaches a junction called the Because the nerve impulse cannot cross the synaptic cleft,
Answer:
1. The difference in charge across the membrane is called the - membrane potential.
2. It is measured in mV
3. At resting potential, the charge of the outside of the neuron is 70 mV less negative than the inside
4. Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) Action Potential
5. This causes the charge outside the cell to temporarily become positive and the inside to temporarily become negative
6. When the action potential arrives at the axon terminal it reaches a junction called the Chemical Synapse
Explanation:
1. The difference in charge across the membrane is called the - membrane potential.
2. It is measured in mV
3. At resting potential, the charge of the outside of the neuron is 70 mV less negative than the inside
4. Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) Action Potential
5. This causes the charge outside the cell to temporarily become positive and the inside to temporarily become negative
6. When the action potential arrives at the axon terminal it reaches a junction called the Chemical Synapse
Answer:
1. The difference in charge across the membrane is called the - membrane potential.
2. It is measured in mV.
3. At resting potential, the charge of the outside of the neuron is 70 mV less negative than the inside.
4. Once a stimulus changes the membrane potential, the neuron conducts an impulse called a(n) Action Potential.
5. This causes the charge outside the cell to temporarily become positive and the inside to temporarily become negative.
6. When the action potential arrives at the axon terminal it reaches a junction called the Chemical Synapse.
How is an ecosystem’s biodiversity a measure of its health?
please heip i am giving away brainiliest for the best answer
Which substance produced by the immune system is involved in both active and passive immunity?
A. antibiotic
B. antibody
C.vaccine
d. mucus
no dam links
Answer: b
Explanation:
Answer:
B. Antibody
Explanation:
Trust me I've learned this is middle school
Explain the difference between mitosis and meiosis.
Answer:
Mitosis involves the division of body cells, while meiosis involves the division of sex cells. The division of a cell occurs once in mitosis but twice in meiosis. Two daughter cells are produced after mitosis and cytoplasmic division, while four daughter cells are produced after meiosis
Explanation:
hope it hepl u
Plants and animals are part of the ______________ group
Question 1 options:
Eukaryota
Bacteria
Archaea
Rodent
Answer: Eukaryota are organisms with nucleus within cells.
Explanation: Animals, Plants, Fungi, and Protists are all part of Eukaryota.
3 poi
List the three types of heterotrophs in alphabetical order. Use commas.
Please do not use capital letters. Spelling counts.
Answer:
holozoic , saprophytic , parasitic
An
is like a tiny magnet because the electrons
spinning around its nucleus give the atom north and south
poles and a magnetic field.
The answer for this question is “Atom”. You can find the answer in Ck-12’s lesson on Ferromagnetic Material.
Severe acute respiratory syndrome (SARS) is an illness caused by a coronavirus. Symptoms, including a high fever, headaches, and body aches, typically occur two to seven days after infection by the virus. This information suggests that the reproductive cycle of the SARS virus is - lysogenic, because the virus is a coronavirus. lysogenic, because the virus is a coronavirus. lysogenic, because the virus primarily affects older people. lysogenic, because the virus primarily affects older people. lytic, because the virus causes respiratory illness. lytic, because the virus causes respiratory illness. lytic, because of the quick onset of symptoms after infection.
Answer:
lytic, because of the quick onset of symptoms after infection
Explanation:
As seen in the question above, the SARS virus tends to develop symptoms very quickly when it is infecting a person. This speed in the development of symptoms is a characteristic of the lytic cycle, in relation to the reproductive cycle of viruses. This is because in the lytic cycle, a virus can infect many cells at once, which accelerates the development of the disease. This cycle allows the virus to use all of the cell's biological machinery to reproduce more copies of the virus. When these copies are ready, the virus causes the destruction of the host cell and the release of new viruses to other cells, where the whole process will be repeated. This is all done very quickly.
The lysogenic cycle does not cause the rapid infection of thousands of cells, since it is necessary that there is an adaptation between the DNA of the cell and the DNA of the virus. This slows down the infection process and, therefore, symptoms appear more slowly.
Answer:
lytic, because of the quick onset of symptoms after infection
Explanation:
I just took the Test
Young male chimpanzees look for mates outside of their own population. The males then take the females back to their group. Which of the following occurs in the original females' population?
A emigration
B immigration
C mortality
D natality
Answer:
D
Explanation:
The father of two children is type 0+, and the mother is type A+. The children are O- and A+.
Given this information, what can you say about the genotypes of father and mother?
Answer the question in the image!
Answer:
canidae! hope thats correct
The diagram shows a portion of the fossil record. Select ALL of the statements that are supported by the record. A) Life moved to land in layer 6. B) Layer 5. is older than layer 2. C) Fish were the first life forms. D) The oldest life existed in water. E) Shelled organisms existed before fish.
Answer:
D,E
Explanation:
the law of reflection states that light will always reflect
Answer:
The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. ... The reflected ray is always in the plane defined by the incident ray and the normal to the surface.
Explanation:
Can someone help me ASAP??
Answer:
c
Explanation:
if perimeter of a square is 24cm find its area please give me easy formula
Answer:
4l = 24
so l=6
now
l*l =6*6
= 36 square cm
Answer:
36cm²
Explanation:
Perimeter of a square = 4x (sum of all 4 sides)
Perimeter = 24 cm (given)
[tex]\implies [/tex]4x = 24
x = 24/4 = 6 cm
Now, area of a square = (side)²
Area = (6)²
= 36 cm²
Which protist is considered to be the most complex and specialized?
A. Amoeba
B. Paramecium
C. Volvox
D. Euglena
Answer:
The answer is B. Paramecium.
Explanation:
3. Describe how the protein's Structure and/or Function are changed.
Answer:
The gene, or sequence of DNA, ultimately determines the unique sequence of amino acids in each peptide chain. A change in nucleotide sequence of the gene's coding region may lead to a different amino acid being added to the growing polypeptide chain, causing a change in protein structure and therefore function.
Explanation:
Please answer me what’s the answer for this ?
Answer: Gene flow my man
Explanation:
When an organism fights with another organism over a limited resource it is called?
A. carrying capacity
B. symbiosis
C. competition
D. predator-prey relationship
what are the feeding habits of an earthworm?
~(✿^‿^)~ helo pls
Answer:
Earthworms enhance the soil by their burrowing and feeding habits. Earthworms basically eat their way through the soil, and they have a tremendous ability to process the dirt they live in. Some studies suggest that in one acre of top soil, earthworms consume and mix more than 20 to 40 tons of soil per year.
Hope it helps
lunar phases summary 2-4 sentences
Answer:
The 8 moon phases in order are New moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full moon, Waning Gibbous, Last Quarter, and finally Waning Crescent. The moon has phases the wanes, waxes, and even sometimes we can't even see the moon during its phase.
Explanation:
~Hope this helps