The probability of the child of a couple with heterozygous father and homozygous recessive mother is 50%.
What are the recessive traits?Recessive traits and alleles refers to the relationship which is between an observed trait and the two inherited versions of a gene which are related to that particular trait. Individuals which inherit two versions of each gene are known as alleles, from each parent.
In the case of a recessive trait, alleles of the trait-causing gene are the same, and both alleles must be present in an organism to express the trait. A recessive allele does not produce a trait when only single copy is present. This contrasts to a dominant trait, which requires that only one of the two alleles be present to express the same trait.
The cross between a father with genotype Dd and mother with genotype dd will produce the child with dimples (recessive trait) and the probability will be 50%.
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A tick and a dog have this type of relationship?
*mutualism
*commensalism
*neutralism
*parasitism
Answer:
Parasitism
Explanation:
First, let's define each term.
Mutualism: A symbiotic relationship where both organisms benefit
Commensalism: An association where one organism benefits, and the other is not harmed or benefited.
Neutralism: 2 organism interact but they have no effect on each other.
Parasitism: A symbiotic relationship where a parasite lives in or on another organism and harms the organism.
A dog and a tick are an example of parasitism. The tick lives on the dog and drinks the dog's blood. This is the food for the tick, so the tick is benefiting by gaining a food source. The dog can be harmed if the tick is carrying a disease, such as Lyme disease.
Which describe the effects of climate on the rate of weathering? Select three options.
Answer:
Warm climates favor chemical weathering.
Cold climates favor mechanical weathering.
Chemical reactions occur faster at higher temperatures.
Energy released by fusion in the Sun is initially in the form of
visible light
gamma rays
ultraviolet light
infrared radiation
Answer:
gamma rays
Explanation:
Energy released by fusion in the sun is initially in the form of gamma rays.
[A gamma ray designates the high frequency electromagnetic radiation of a photon whose wavelength is less than 1 picometer which corresponds to frequencies greater than 300 exahertz.]
Answer:
gamma rays
Explanation:
A stream of waters holds thriving bacteria. If drought conditions caused the stream to dry up, how would the bacteria most likely respond to survive?
ow you could create a 3D model, using household materials, of two bones connected by a joint filled with cartilage.
Answer:
by helping it every time and working hard
HELPPP ASAPPP!!!! 20 POINTSS!!!
Why do cells use fat and starch for long-term energy storage instead of ATP molecules?
A.) ATP is used for long-term storage, while fat and starch are used for immediate energy.
B.) ATP is used for short-term energy and to build molecules of starch and fat.
C.) Fat and starch are unstable and can be stored short-term, while ATP molecules are stable and stored long-term.
D.) Fat and starch are stable if used as energy immediately, while ATP is used as long-term storage
Answer:Cells use fat and starch for long term energy storage instead of ATP molecules because it is hard to breakdown fat in a very short time while ATP can be broken down in a very short time. ATP is mainly used while doing short bursts of exercises. Fats have a very strong bond of molecular chains and this makes it hard to breakdown quickly.
Explanation:
Answer:
ATP is used for short-term energy and to build molecules of starch and fat.
the process by which organisms take in nutrients to use for life process
Answer:
photosynthesis processs its right
Give one reason Mendel chose pea plants for his experinment
Answer:
Gregor Mendel chose pea plants for his experiments because they are easy to raise, have many offspring per mating, can fertilize themselves and have varieties in genotype and phenotype that are easily observable. These characteristics make pea plants ideal in the study of genetics and heredity.
Explanation:
hope this helps you :)
Answer:
see below
Explanation:
Mendel chose pea plants for his experiments because they have easily identifiable traits like pea plants are either tall or short, which is an easy trait to observe. Also, pea plants grow quickly, so he could complete many experiments in a short period of time.
A red flower (RR) and a red flower (Rr) have the same:
A. genotype
B. haplotype
C. Phenotype
Answer:
the answer is a. genotype
How are natural communities structured?
I need help plzzzz i need answer
Compounds like the pesticide DDT may bring about the evolution of new strains of organisms by...?
(1) destroying food producers
(2) acting as natural selecting agent
(3) mixing two different sets of genes
(4) creating new ecological niches
Answer:
(2) acting as natural selecting agent
Explanation:
Compounds like the pesticide DDT may bring about the evolution of new strains of organisms by acting as a natural selecting agent.
Evolution is generally defined as a gradual change to the characteristics of organisms over a period of time.
When DDT is used on a particular population of pest, those that are weak within the population die off, leaving only those that are strong within the population to survive and multiply. The DDT acts a selecting agent for the survival gene in the pest and the survived gene eventually evolve into a new, DDT-resistant strain pest in no time.
The correct option is option (2).
O fitoplâncton é a base das cadeias alimentares marinhas ,estando presente apenas na zona fótica . Vc concorda com a afirmação justifique a sua resposta
Answer:
El fitoplancton se basa en la cadena alimentaria marina. Sin embargo, el fitoplancton significa mucho más porque forman la base y la base de la cadena alimentaria marina. Se les conoce como fitoplancton porque dependen de la luz para el crecimiento y el sustento de la vida fuera del hábitat marino. Se sabe que son responsables del 50% de la fotosíntesis de la Tierra, por lo tanto, son cruciales para la supervivencia humana. Las algas son un grupo importante de fitoplancton. Otros ejemplos incluyen cianobacterias y diatomeas.
Explanation:
Japanese honeysuckle is found in the United States. It outcompetes other plants by blooming early and dying off late. This is an example of
Answer:
nonnative species
Explanation:
just learned about it on Edge
how life gets and shares energy?
Answer: Photosynthesis and the food chain.
Can someone help me with this question please?
Answer:
How you should explain so it wont look plagerized:
Explanation:
I believe that the most important part of a plant is the roots and the stem because the roots carry the nutrients and the stems process it so the plant stays healthy and alive!
Hope this helps.
Have a good day!
(Brainliest would be appreciated)
A scientist makes an image of all of a person's chromosomes. What
technique is she using?
Answer:
She is using a karyotype
Explanation:
A karyotype is an image that helps in analysis to a person's chromosome. It is a picture of all chromosomes of an individual. Scientists take this picture or image sample of chromosomes of the individual is isolated, stained or examined under the microscope. This image helps in analysis and study of the chromosome.
Thus, the correct answer is karyotype
Answer:
Karotyping
Explanation:
Identity which questions can be answered through science and which cannot.
Is it right or wrong to use genetic
engineering to produce new food
products?
If a new gene is added to the genome
of a tomato species, will that species
be more resistant to insects?
Are Michelangelo's paintings more
impressive than Rembrandt's?
Should humans use biotechnology
to bring extinct organisms from the
fossil record back to life?
What are the most common social
settings that tend to produce
accomplished artists?
Do the types of organisms found in
the fossil record appear in consistent
sequences in different parts of
the world?
can be answered
through science
cannot be answered
through science
rights reserved.
Answer: Those questions that can be answered using experimentation procedures and observations can be answered through science and those that cannot be answered by experimentation cannot be answered through science.
Explanation:
1. It cannot be answered through science because right or wrong to use genetic engineering may be dependent on other parameters like ethical basis.
2. This can be answered through science. This can be answered while placing the resistant species to insects and observing the effect.
3. This cannot be answered through science. This can be answered on qualitative comparison which does not require scientific experimentation.
4. This can be answered scientifically by tracing the primitive life forms and using the residues to develop a new organism with the help of biotechnology.
5. This cannot be answered through science. This is because social factors must be looked upon to understand how they are responsible for producing accomplished artists.
6. This can be answered through science by analyzing the fossil record with respect to the strata were they were found beneath the earth.
How do environmental signals, like light influence the distribution of auxin in a plant? A. By increasing the concentration of auxin B. By destroying the auxin C. By causing auxin to migrate in to the shaded portion D. By decreasing the cells sensitivity the auxin
Answer:
C. By causing auxin to migrate in to the shaded portion
Explanation:
Auxin is the most important plant hormone involved in the apical growth of plant parts. Auxin is evenly distributed in a plant with a normal light condition, however, when a particular part of a plant is exposed to sunlight, that illuminated part contains less auxin. The hormone is transported to the shady part of the plant via diffusion.
This causes more auxin to be present in the shady part than the illuminated part, hence, the shady part experiences a faster and elongated growth. This elongated growth in the shaded portion of the plant causes it to grow towards the direction of the light, a process called PHOTOTROPISM.
How much do you think your pulse will increase during the two activities?
Answer:
what activities are you talking about
Explanation:
Are Mammut mastodons the same species as Paleomastodons?
Answer:
These woolly mammoths were not closely related to mastodons. Mammoths and mastodons may have once roamed the Earth together, but they represent two distinct species of the Proboscidean family. ... Mammoths and modern elephants are closely related members of the same family (Elephantidae).
Explanation:
No, they are not the same species.
Are mammoths and mastodons the same species?Despite the superficial resemblance, mastodons were distinct from mammoths. Mastodons were shorter and stockier than mammoths with shorter, straighter tusks. Mastodons were wood browsers and their molars have pointed cones specially adapted for eating woody browse.
Are mastodons and mammoths related?While mastodons look a lot like modern elephants, they are not closely related. The ancestors of modern elephants and mammoths went their separate ways about 5 million years ago, and mastodons branched off even earlier, about 25 million years ago.
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As a cell becomes larger, its volume __________. A. stays the same in relationship to its surface area B. increases much faster than its surface area C. increases much slower than its surface area D. decreases much faster than its surface area
Answer:
I would think it would increase faster than the surface area because the volume is the whole cell and the surface area is just the outside.
Explanation:
Hope this helps, have a good day! :)
(Brainliest would be appreciated?)
As a cell becomes larger, its volume stays the same in relation to its surface area. So the correct option is A.
What is cell division?There are two types of cell division. These are mitosis and meiosis. Most of the time when people talk about cell division, they are referring to mitosis. This is the process of the formation of new body cells. Meiosis is another kind of cell division that results in the formation of egg and sperm cells.
Mitosis is the fundamental process of life. During the process of mitosis, a cell duplicates itself along with all of its contents. This includes the chromosomes of the cells. Then the cell splits to form two identical daughter cells.
All the steps of mitosis are carefully controlled by certain genes because of the critical nature of this process. When mitosis is not being regulated correctly, various health problems such as cancer can arise.
Meiosis is the next type of cell division. This ensures that humans have the same number of chromosomes in each generation. Meiosis is a two-step process that reduces the chromosome number by half, from 46 to 23, to form sperm and egg cells. This is also called the reduction division.
Therefore the correct option is A.
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PLEASE HELP!!! Why is meiosis necessary for sexual reproduction?
Some adaptations, on the other hand, become useless. These adaptations are vestigial: remaining but functionless. Whales and dolphins have vestigial leg bones, the remains of an adaptation (legs) that their ancestors used to walk. Why did the author include this selection?
Answer:
This is because vestigial parts are usually homologous to most of the structures that are functional in other species of organisms. E.g.. the Vestigial legs which are non functional in whale and Dolphins, are useful to other organisms. Hence, if these organisms possessed these structures, they should share certain characteristics with each other.Therefore these organisms can be said to evolved from one another.Thus their vestigial organism should be included by the author as evidence of evolution.
Explanation:
What are biogeochemical cycles?
Answer:
In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic and abiotic compartments of Earth.
Explanation:
Unknown source.
A new development involves a network of plastic tubes being printed within an organ. After the whole organ is printed, these plastic tubes are dissolved, leaving a network of empty tunnels.
Why does the organ need to have the empty tunnels within it?
Answer:
These are needed to mimic the blood vessels which these organs will use for the supply or drainage of fluids e.g blood.
In addition the empty tunnels serve as the routes for nutrients and oxygen supply for the organ.
In summary the tunnels provided a vascular structure to support the organ
Explanation:
Why do we have ACE2 proteins?
Answer: It is the key to blocking infections
Explanation: I hope this is right :)
What is heart attack? What are its causes?
Answer:
MEANING
A heart attack is a medical emergency. A heart attack usually occurs when a blood clot blocks blood flow to the heart. Without blood, tissue loses oxygen and dies.
A heart attack occurs when one or more of your coronary arteries become blocked. Over time, a coronary artery can narrow from the buildup of various substances, including cholesterol (atherosclerosis). This condition, known as coronary artery disease, causes most heart attacks.
CAUSES:
Chest Pain, Pressure, Fullness, or Discomfort.
Discomfort in other areas of your body.
Difficulty breathing and dizziness.
Nausea and cold sweats.
Which blood type could be given as a transfusion for patient with ab blood when the rh factor is unknown?
Answer:
O+
Explanation:
I took the review and verified the answer
Which statement best describes the events that take place within the
mitochondrial membrane?
O A. Electrons gain energy as they move.
OB. The electron transport chain produces ATP.
O C. The Krebs cycle breaks down glucose.
O D. Kinetic energy is produced by pyruvate.
Answer:
B
Explanation:
took the quiz
Have a good one
Electrons flowing along a protein pathway help produce ATP, according to the best description of what happens within the inner mitochondrial membrane. The correct option is B.
What is an electron transport chain?The electron transport chain is a collection of four protein complexes resulting in an electrochemical gradient that leads to the formation of ATP in a process known as oxidative phosphorylation.
It occurs in mitochondrial membranes during both cellular respiration and photosynthesis.
Thus, the correct option is B.
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