Machines known as “DNA synthesizers” can produce short pieces of DNA.
True or false

Answers

Answer 1

Answer:

Machines known as DNA synthesizers are used to produce short pieces of DNA, up to several hundred bases in length. These synthetic sequences can then be joined to natural sequences using DNA ligase or other enzymes that splice DNA together. A gene from one organism can be attached to the DNA of another organism.


Related Questions

why is the study of coral reefs in Palau is important for other coral ecosystem

Answers

Answer:

The study of coral reefs is important for providing a clear, scientifically testable record of climatic events over the past million years or so. This includes records of recent major storms and human impacts that are recorded by the changes in coral growth patterns. The Nature Conservancy and the Palau Government have joined forces to design and implement a protected areas network  for Palau’s coral reef ecosystem. They recognized bleaching as being potentially one of the

Explanation:

Does galena occur naturally

Answers

Answer:

Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. ... It is often associated with the minerals sphalerite, calcite and fluorite.

Explanation:

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Why are flood plain soils particularly fertile

Answers

Answer:

Due to the deposition of silt.

Explanation:

The Floodplain is a generally flat area of land next to a river or stream. When the river floods, water containing sediments and particles from the upper course and middle course of the river gets washed onto the Floodplain. The nutrients front these sediments and the water is absorbed into the soil for it's enrichment and fertilisation.

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How do cells in an embryo become different types of cells?

Answers

Answer:

The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation. During cleavage, the zygote divides but maintains its size in the process. ... Cells in these three layers will give rise to different parts of the organism. The endoderm eventually becomes the gut.

Explanation:

The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation. During cleavage, the zygote divides but maintains its size in the process. ... Cells in these three layers will give rise to different parts of the organism. The endoderm eventually becomes the gut.

1. A type of movement of substances across the cell membrane that requires no energy is --

A. cell mediated movement

B. facilitated diffusion

C. active transport

D. receptor protein action

Answers

Answer:

B. facilitated diffusion

Explanation:

Name the tissue which makes up the skeleton

Answers

Answer:

Bone, cartilage, tendons, joints, and ligaments

Explanation:

Uh that's what the skeleton is made out of. Nothing I can really explain

Answer:

Tissue that gives strength and structure to bones. Bone is made up of compact tissue (the hard, outer layer) and cancellous tissue (the spongy, inner layer that contains red marrow). Bone tissue is maintained by bone-forming cells called osteoblasts and cells that break down bone called osteoclasts. Bones also contain blood vessels, nerves, proteins, vitamins, and minerals. Also called osseous tissue.

A quick anatomy of the bone! (extras)

Anatomy of the bone. The bone is made up of compact bone, spongy bone, and bone marrow. Compact bone makes up the outer layer of the bone. Spongy bone is found mostly at the ends of bones and contains red marrow. Bone marrow is found in the center of most bones and has many blood vessels. There are two types of bone marrow: red and yellow. Red marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets. Yellow marrow is made mostly of fat.

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which from of weathering most likely caused the reddish coloring of the rocks

Answers

Answer: Oxidation

Explanation: Hope it helps

because one original strand of the double-stranded helix is found in each daughter molecule, the replication process is called

Answers

Because one original strand of the double-stranded helix is ​​found in each daughter molecule, the replication process is called semiconservative.

Replication is the process by which a DNA molecule generates two identical to itself, and is key in cell reproduction.

All cells in the body must have the exact same genome (as in asexual reproductive organisms, which are practically clones of each other) and this is achieved through replication.

The process consists of separating the two strands of DNA, each of which will function as a template to synthesize a new one.

That is, each of the two strands of DNA serves as a template to synthesize a new complementary strand of the template.

In the end, two DNA molecules are formed, each of the two DNA molecules has a new chain and one original strand, this mode of replication is called semi-conservative.

Therefore, we can conclude that because one original strand of the double-stranded helix is ​​found in each daughter molecule, the replication process is called semiconservative.

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justify the statement conservation of forest helps in the protection of environment​

Answers

Answer:

conservation of forests helps in protection of environment as forests gives food fodder and shelter to animals

Explanation:

The importance of forests cannot be underestimated. We depend on forests for our survival, from the air we breathe to the wood we use. Besides providing habitats for animals and livelihoods for humans, forests also offer watershed protection, prevent soil erosion and mitigate climate change.

How do polar water molecules pass through the plasma membrane? (3 points)
Water molecules pass through channel proteins to cross the membrane.
Water molecules can pass through the membrane freely and rapidly.
Water molecules dissolve into the lipid bilayer and cross the membrane.
Water molecules attach to cholesterol and cross the membrane.

Answers

Water passes through the membrane in a diffusion process called osmosis. During active transport, energy is expended to assist material movement across the membrane in a direction against their concentration gradient. Active transport may take place with the help of protein pumps or through the use of vesicles.

where does combustion take place in a coal-burning power plant?

Answers

Answer:

Boiler

Explanation:

The pulverized coal is then put into a boiler, where combustion occurs and the coal provides heat to a power plant. This heat is transferred to pipes containing very high pressured water, which boils to steam.

Which cell type undergoes terminal differentiation?

Answers

Stem cells are the only form of cell that can differentiate into more specialized cell types. Therefore, they undergo terminal differentiation.

What is terminal differentiation?

As cells migrate to the surface and fully differentiate, i.e., as they keratinize and eventually die, this process is known as terminal differentiation. Terminal differentiation is a method of describing that the cells change their phenotypic traits.

During the process of terminal differentiation, several cell types (such as neurons, skeletal and cardiac myocytes, adipocytes, and keratinocytes) acquire specific tasks and ultimately exit the cell cycle. This process may be observed in neurons, adipocytes, and keratinocytes.

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a mixed nerve consists of both __________ and ___________.

Answers

Afferent and efferent axons

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what products from the ""light"" reactions are used in the ""dark"" reactions?

Answers

Answer: Photosynthesis: The process of synthesis of food form inorganic raw materials in chlorophyll

The reactants are water and carbon dioxide while glucose, water, and oxygen are products

Dark reactions occur in the grana of chlorophyll, and get energy from ATP and NADPH.

The reactants are water and carbon dioxide.

The products are organic sugar molecules

Explanation:

What muscle supinates the hand?

Answers

Answer:

Braquirradialis

Explanation:

El músculo supinador, también llamado supinador corto para diferenciarlo del supinador largo (braquirradialis) es un músculo ancho, dispuesto alrededor y sobre la cara lateral del codo y la parte superior del antebrazo. Se extiende desde el epicóndilo lateral y el cúbito hasta el radio.

Nervio: Rama profunda del nervio radial, dura...

Acción: Es supinador (gira el radio de medial a ...

Origen: Epicóndilo lateral del humero y cúbito

Arteria: Arterias recurrentes radiales

which solution is hypertonic?

Answers

Answer:

the beaker

Explanation:

the beaker (0.5 m salt) has more solvent than the red blood cell (0.1 m salt). Therefore, it means that the red blood cell is hypotonic (more water/solute), and the beaker is hypertonic (more solvent/salt).

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What type of molecule is ATP?
a nucleotide
O a monosaccharide
O an amino acid
O a lipid

Answers

Answer:

ATP is a nucleotide consisting of an adenine base attached to a ribose sugar, which is attached to three phosphate groups. These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds.

Explanation:

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1. State one possible negative effect of a warming trend on Earth. Specify how this effect will
have a negative impact on the living environment.

Answers

Answer:

One stated possible negative effect of a warming trend on earth is that the polar ice caps could melt.

Explanation:

Specification on how this will have a negative impact on the living environment is that it will cause sea levels to rise this is negative because: tsunamis will become more severe and damaging to land. Rain storms will have severe floods then what we have now.

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“The movement of cytoplasm is due to the movement of chloroplasts in the living cells of onion plant”, “while the movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants”

which statement is correct and which one is wrong

Answers

''The movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants'' is the correct statement.

The above statement is correct because chloroplast is an organelle which moves in the cell through the medium known as cytoplasm. Cytoplasm is a thick fluid that fills every type of cell and organelles are floating as well as suspended in this fluid.  

All organelles such as the nucleus, endoplasmic reticulum, chloroplast and mitochondria etc are located in the cytoplasm. The portion of the cytoplasm except the organelles is called cytosol so we can conclude that chloroplast is an organelle which moves within the cell with the help of cytoplasm.

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the rhomboideus minor muscle originates on which process on the vertebrae?

Answers

Answer:

The spinous process

Explanation:

The rhomboideus minor muscle is a part of the posterior group of the pectoral girdle, which is included in the spinous process.

which muscle is used when giving your grandmother a kiss on the cheek?

Answers

Sternocleidomastoid

Explanation:

where does the calvin cycle take place in the chloroplast

Answers

Answer:  stroma

Unlike the light reactions, which take place in the thylakoid membrane, the reactions of the Calvin cycle take place in the stroma (the inner space of chloroplasts).

Explanation:

what is the function of carbohydrates for the body

Answers

Answer:

to provide energy to the body

Explanation:

The function of carbohydrates for the body is mainly to provide us with energy. Carbohydrates are broken down into simple sugars and are absorbed into your bloodstream!

8. Explain why mammals have specialized excretary organs but plants do not have.

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

They consume food and they have much higher metabolism. That means that more waste products are produced. Plants can use much of the waste produced and it is in fact raw material. Animals don't normally produce their own chemicals from scratch like plants normally do so they can't just recycle the waste. They need to remove it. About the only waste plants need to get rid of is excess oxygen produced during the day. That is actually three reasons but recycling is related to plants not consuming but making their own chemicals from scratch. In a way it pretty much comes down to one main reason.

what is the geosphere, also called the lithosphere

Answers

Answer:

The lithosphere is part of a larger sphere called the geosphere. ... The lithosphere refers to the outer part of the geosphere, which includes the upper part of the mantle and the crust. The lithosphere is also part of the Earth where the rock cycle is found.

Help me pls. ‼️‼️‼️‼️‼️In your own words explain the concept of sea floor spreading

Answers

Answer:

No biologist but this is what my teacher told the class during the weel

Explanation:

Organisms would expand due to the movement of tectonic plates while bacteria would settle there

define angiosperm with example

Answers

Angiosperms are a major division of plant life, which make up the majority of all plants on Earth. Angiosperm plants produce seeds encased in “fruits,” which include the fruits that you eat, but which also includes plants you might not think of as fruits, such as maple seeds, acorns, beans, wheat, rice, and corn

What is the definition of epistasis?

A. when the allele of one gene changes the phenotype of another gene

B. when the allele of one gene masks the genotype of another gene

C. when the allele of a gene changes the phenotype of another allele of that gene

D. when the allele of one gene masks the phenotype of another gene

Answers

The definition of Epistasis in gene biology is Choice D: when the allele of one gene masks the phenotype of another gene

Definition:

When the phenotypic effect of alleles at one gene are masked by alleles of another gene.

In essence, a gene is said to be epistatic when its presence suppresses the effect of a gene at another locus.

It is important to know that Epistatic genes are often called inhibiting genes because of their effect on other genes which are described as hypostatic.

Additionally, there are six common types of epistasis gene interactions:

Dominant

Dominant inhibitory,

Duplicate dominant,

Duplicate recessive,

Polymeric gene interaction,

Recessive.

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How have rising ocean temperatures affected coral communities?

A. Corals become less photosynthetic as the surrounding temperature increases.

B. Corals find fewer food sources when algal blooms increase due to warmer waters.

C. Corals attract fewer algal species when they become warmer.

D.Corals become bleached as they expel algae with increased temperatures.

Answers

Answer: D.Corals become bleached as they expel algae with increased temperatures.

Explanation:

As ocean temperatures rise, it can stress coral polyps, that causes them to lose algae. As a result, there is "coral bleaching". It is called that because the algae gives coral its color. When all the algae is gone, the coral is white.

The bleaching of corals in the world, are due to the increase in sea temperatures, but to understand how this changes corals, we need to know that.....

Coral bleaching

Coral bleaching is a serious ecological problem mainly related to the increase in ocean water temperature. This problem can occur transiently or fatally, killing the coral. In the bleaching phenomenon, the corals become translucent, making it possible to verify the calcium carbonate skeleton of these animals. This happens because of the expulsion of zooxanthellae algae or because of the loss of pigment from these algae, which live in a mutualistic association with the coral.

Question answer

D.Corals become bleached as they expel algae with increased temperatures.

with this information, we came to the conclusion that with the increase in sea water temperature, algae that are associated with corals are expelled.

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which body system is responsible for producing the hormone adrenaline?

Answers

Answer:

In the centre (medulla)

Explanation:

Of the adrenal glands and in some neurons of the central nervous system.

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