Answer:
Lithification is the process in which sediments compact under pressure, expel connate fluids, and gradually become solid rock
Explanation:
it means i love farm girls
Explanation:
A couple has three children, two without sickle cell anemia and one with sickle cell anemia. The mother has sickle cell anemia as well, while the father does not.
Make and defend a claim as to how this couple could have children with and without sickle cell anemia.
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.
The table below shows the number of amino acid differences seen in several species compared to humans. Using the data in the table as an indicator of relatedness between
species, indicate the species the most closely related to humans.
Answer:
gorilla :)
Explanation:
What would happen if the rock sample picture above was first exposed to energy from the sun and then millions of years later energy from earths interior
Answer:
It will have energy inside the rock
Which substances are needed to make food in plants? A. Glucose and oxygen B. Oxygen and water C. Water and carbon dioxide D. Carbon dioxide and oxygen
Answer:
Es la c
Explanation:
Old red blood cells are cleaned out of the body by the _____ and ______.
spleen and liver
liver and stomach
kidney and stomach
kidney and spleen
Answer:
Kidney and spleen
Explanation:
A student uses a graphic organizer to show the characteristics of an object in our solar system. Which of the following objects accurately completes the graphic organizer? Drag the correct title into the graphic. 1. Asteroid 2. Comet 3.Moon 4. Planet
Answer:
Comet
I just got this question lol
what causes wind?
a. earth spinning on its axis
b. differences in longitude
c. differences in latitude
d. differences in air pressure
Answer:
when the air pressure pushes against the earth it puts pressure so that is how we have wind answer: D
Explanation:
Answer:
a
Explanation:
where else are you going to get it from what else spins or what else moves it can also be the cars on the freeway how fast it goes
2.
Describe what happens during interphase. Be sure to include all three parts of interphase.
Answer:
Interphase is divided into three subphases which are G1 phase, S phase and G2 phase.
Explanation:
During G1 and G2 phases, the cell grows by producing proteins and cytoplasmic organelles. Cell growth and cell differentiation occur. In the S phase, synthesis of DNA occurs. The chromosomes are duplicated and DNA has replicated to form two identical sister chromatids joined together by centromere. During interphase, the chromosomes are not visible but appear as thread-like structures, chromatin. In general. Interphase is the phase where the cell prepares for cell division. It involves synthesis of protein and organelles, growth, replication of DNA, cell differentiation and energy storage.
PLEASE HELP ASAPP ILL GIVE BRAINLIEST!!!
Answer:
I would expect the mass to be less
In flies, Red eyes are dominant to white. If a true-breeding red-eye fly bred with a true breeding white-eye fly, the offspring will be:
Answer and Explanation:
Available data:
Red eyes are dominant to whiteDominant allele RRecessive allele rCross: true-breeding red-eye fly bred with a true breeding white-eye fly
Parentals) RR x rr
Phenotypes) Red-eyed White-eyed
Gametes) R R r r
Punnett square) R R
r Rr Rr
r Rr Rr
F1) 4/4 = 100% of the progeny will be heterozygous for the trait expressing red eyes, Rr
---------------------------------------------------------------------------------------------------------
In Drosophila melanogaster, the fruit fly, the gene for the eye color is X-linked. So in this species:
- X⁺ expresses red eyes ----- > + is the dominant allele for red color
- X⁻ expresses white eyes ----> - is the recessive allele for white color
Option 1: true-breeding red-eyed females and white-eyed male
Parentals) X⁺ X⁺ x X⁻Y
Phenotypes) Red-eyed female White-eyed male
Gametes) X⁺ X⁺ X⁻ Y
Punnett square) X⁺ X⁺
X⁻ X⁺X⁻ X⁺X⁻
Y X⁺Y X⁺Y
F1) 4/4 = 100% of the progeny will express red eyes
50% of individuals are red-eyed males, X⁺Y
50% of individuals are red-eyed heterozygous females, X⁺X⁻
Option 2: true-breeding white-eyed females and red-eyed male
Parentals) X⁻ X⁻ x X⁺Y
Phenotypes) Red-eyed female White-eyed male
Gametes) X⁻ X⁻ X⁺ Y
Punnett square) X⁻ X⁻
X⁺ X⁺X⁻ X⁺X⁻
Y X⁻Y X⁻Y
F1) 2/4 = 50% of the progeny will be females expressing red eyes, X⁺X⁻
2/4 = 50% of the progeny will be white-eyed males, X⁻Y
GMO technology today is an important part of modern biotechnology and is used, among other things, to give bacteria, plants and animals new properties. This is possible by inserting a gene from, for example, a bacterium, into a plant or animal (transgenes).
The diagram provided represents some steps in a procedure used in the field of biotechnology SC.912.-16.10
This bacterial cell can now be used to produce
A. Insulin that can be used by humans
B. Human genes for enzymes that can be inserted into humans
C. The bacterial gene for insulin that can be inserted into humans
D. Enzymes necessary to treat human diseases
Organisms whose genetic material has been modified are called Genetically modified organisms. The bacteria can be used for the production of Insulin that can be used by humans.
What are GMOs and transgenes?Genetically modified organisms are altered and modified living things like animals, plants, a microorganisms that are modified by the methods of genetic engineering and recombinant DNA technology.
The genetic material that is modified and inserted in the host for the expression of the gene of interest is called a transgene. The genetically modified gene can be inserted in bacteria, plants and animals.
In the diagram gene for the production of human insulin is inserted in the bacterial DNA so the insulin produced can be used for the treatment of diabetic human patients.
Therefore, option A. bacteria cells can be used for the production of Insulin.
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H-C-C-C-0-H
T-O-1
TO
Polor or non polar
I need help on how to fill this in.
In peas, axial flowers are dominant over terminal flowers. What phenotypic ratios would you expect in offspring from a cross between a known heterozygous axial-flowered plant and one whose flowers are terminal?
Answer:
Phenotype:
2/4 = 1/2 = 50% axial-flowered plant (Aa)2/4 = 1/2 = 50% terminal-flowered plant (aa)Phenotypic ratio 1:1
Half of the progeny will be axial-flowered plants (Aa) while the other half will be terminal-flowered plants (aa)
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
The soil in forested wetlands has dark soil,
which indicates a high level of
organic matter
moss
water
Answer:
water
Explanation:
Dirt has a tendency to begin to change to a darker color as its absorbance limit gets closer to being reached.
If we found a way to repair a single cell with the DMD gene in a 2-year old child, could we cure DMD by repairing that single cell?
Answer:
No
Explanation:
because every cell will have that gene and you can't change a gene that was inherited from your parents.
No, there is no chance of curing DMD, by repairing a single cell with the DMD gene because it is a genetic disorder.
What is DMD?Duchenne muscular dystrophy, is the full form of DMD. It is a disease that cause weakness of muscles and leads to degeneration of muscles, it occurs due to change in dystrophin protein which is necessary to strengthen the muscles.
Thus, the correct option is No.
Learn more about DMD
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Why is the cell cycle so tightly controlled in multicellular organisms?
Answer:
All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.
All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.
What is cell cycle?Cell cycle has been as the defined as cycle in which cell produces, grows and divides. The cell cycle has mainly three steps the first one has G1 phase in which the size of the cell increases, S phase synthesis of DNA takes place and the third step has G2 phase in which all cell ready to divide.
Cell has been defined as the base of the life as it has the structural as well as functional unit of life. Cell has been made up of pre existing cells and the cell contain various part cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Therefore, All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.
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PLSSS HELP!!
A. carbon dioxide
B. food
C. living space
D. light
Answer:
a
Explanation:
List and describe at least 3 sources of variation.
Answer:
mutation, recombination, and immigration of genes.
Explanation: I think this is it if not please tell me and can I have brailiest
i am struggling please help if you are good in science
Which phases of mitosis are the most difficult to distinguish? Why?
Answer:
Since prophase and prometaphase are difficult to distinguish; classify the cells as prophase
DNA is the most difficult to visualize at prophase stage of mitosis.
Explaination: At prophase stage,no well defined chromosomes are present. DNA is present in the form of thin chromatin fibers that are difficult to visualize under microscope.
How can the length of day affect temperatures on Earth?
Answer:
The longer the day the solar radiation is absorbed and the higher the temperature.
How does temperature affect enzyme activity and why?
Answer:
The increase in temperature in a hot environment will cause the enzymes to denature (deform), the substrate will no longer be able to fit into the enzyme
However, in a cold environment the enzymes abd subtrate will be a lot more slower but they will still work.
enzymes work by ___
a. changing the ph of the solution
b. transforming products
c. making bubbles
d. lowering the activation energy
Answer:
Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily. Reaction coordinate diagram showing the course of a reaction with and without a catalyst. With the catalyst, the activation energy is lower than without.
In the process of photosynthesis the compounds that are produced are...
a
carbon dioxide and water
b
glucose and oxygen
c
water and oxygen
d
glucose and carbon dioxide
[tex] \huge \purple{\tt{Answer:}} [/tex]
b) glucose and oxygen
How did the Cuyahoga River Fire in 1969 push the development of The Clean Water Act?
Answer:
Cleveland had been a major industrial city since the 1880s, and the mayor then called the river “an open sewer through the center of the city.” But when the Cuyahoga River caught fire in Cleveland in 1969, many believe it became the symbol of out-of-control pollution that was needed to get the Clean Water Act passed.
Explanation:
World wide what area best describes where most volcanoes are located
a.Antartic Circle
b.Ring of Fire
c.Mid Alantic rift zone
d.Mediterranean
I need help on this one asap and thank you
Which of the following best describes how an atomic property is used in the treatment of cancer?
A
An unstable atom that absorbs gamma rays is used in radiation therapy to treat cancer.
В.
A stable atom that absorbs gamma rays is used in radiation therapy to treat cancer.
C.
A stable atom that emits gamma rays is used in radiation therapy to treat cancer.
An unstable atom that emits gamma rays is used in radiation therapy to treat cancer.
A stable atom that emits gamma rays is used in radiation therapy to treat cancer. Thus option C is correct.
What is cancer ?
Cancer is a disease in which abnormal cell growth occur with the help of uncontrolled cell division and spread to other parts of the body. If it is fixed to one specific area of the body called as benign whereas if it spreads over different parts of body called as malignant.
In case of normal cell growth when human cells will grow and multiply to form new cells, when become old it will get damaged; In case of cancer mainly caused by genetic changes that control the way our cells function.
These Genetic changes that cause cancer include errors in cell division, damage of DNA due to harmful substances in the environment like chemicals in tobacco smoke and ultraviolet rays, also inherited from parents.
gamma rays which is the most powerful radiation energy could be focused to a pin point, and kill cancer cells with out harm the adjacent normal tissue, Now a days Gamma knife device is used to treat brain tumors.
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Chemical barriers to pathogens include
lysozyme in the____and____
in
the stomach.
Answer:
tears or saliva and mucusExplanation:
hope this helps
Explanation:
Chemical barriers to pathogens include
lysozyme in the___saliva_and__mucus__
in
the stomach.
how does sickle cell anemia mutation impact the structure and function of the protein produced
Answer:
The beta globin protein is one of the subunits of hemoglobin, a protein necessary for the oxygen-carrying function of red blood cells. People with the sickle cell mutation in both copies of the HBB gene produce proteins that clump together and lead to changes in the shape and behavior of red blood cells.