The branch of biology which deals with technology along with the living cells is called biotechnology.
The tools use for biotechnologies are:-
Alien DNA PlasmidVectorNucleasesDNA ligaseScientists use genetic engineering to alter the DNA sequence of an organism to get the desired product.
Therefore, scientists use Genetic engineering because the genes of the plants were modified.
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how does autotroph get its food?
it absorbs food from its environment.
it makes its own food through cellular respiration.
it makes its own food.
Which of the following is not a sign of a chemical change?
Color change
Odor production
Heat production
Shape change
In sunflowers, tall stems (T) is a dominant trait while short stems (t) is a recessive trait. In a field of 1000 sunflowers, 820 are tall plants and 180 are short. Which statement BEST describes the genotype of the sunflowers in the field?
A)About 50% are homozygous for tall stems.
B)About 75% are homozygous for tall stems.
C)About 50% are homozygous for short stems.
D)About 50% are heterozygous for tall stems.
The spin of a planet or moon as seen form above a planets pole is called its _______.
The spin of a planet or moon as seen from above a planet's pole is termed its rotation, which occurs around an imaginary line called the axis.
Explanation:The spin of a planet or moon as seen from above a planet's pole is called its rotation. When we think of the Earth, for example, we can imagine a line passing through the center of the planet that goes through both the North Pole and the South Pole. This imaginary line is known as the axis. The movement of Earth around its axis, reminiscent of how a top spins around its spindle, is what we refer to as the Earth's rotation.
Every planet and moon in our solar system undergoes this spinning movement, which plays a crucial role in defining day and night cycles on these celestial bodies. The position of the axis in relation to the celestial sphere also influences the visibility of stars and other celestial objects from the Earth's surface, with the axis pointing towards the celestial poles.
Water is traveling up a tree carrying nutrients. Use the water cycle to explain how the water later becomes groundwater
Investigators studied the effect of temperature on the rate of biological enzyme action. The experimental data is summarized in the graph. The investigators concluded that the enzyme works best at human body temperature. What part of the data validates their conclusion? A) The graph peaks at 37°C and dips beyond this point. B) The graph shows an exponential rise in reaction velocity. C) The graph shows that the reaction is complete at 60°C. D) The reaction is seen for temperatures between 0°C and 60°C.
A) The graph peaks at 37°C and dips beyond this point.
Zinc 419.53 oC 7.134 Nickel 1455oC 8.912 Copper 1084.62oC 8.96 Silver 961.78oC 10.501 Gold 1064.18oC 19.282 A cube of each metal, in the table, is provided on a laboratory table. Each cube has the same volume of 10 cm3. Which cube would have the largest mass? A) copper B) nickel C) silver D) zinc
Answer:
it is c silver
Explanation:
because
Picture included please help this is for a very big grade and I really can figure these out serious inquiries only
What is the difference between NAD+ and NADH
What human activity is most responsible for the damage to the ozone layer? A) The use of freon and CFC spray propellants. B) Deforestation and interruption of the water cycle. C) The contamination of groundwater with mercury and PCBs. Eliminate D) Burning of fossil fuels and the subsequent creation of acid rain.
Answer: A) The use of freon and CFC spray propellants.
Chlorofluorocarbons (CFCs) are compounds that are used as propellents in the spray cans and in refrigerators. These are manufactured under the trade name of Freon. Freon is a CFC that contains fluoride as a main ingredient. These CFCs are released in the atmosphere and they accumulate in the stratospheric layer. The ozone layer is present in the stratosphere shields the Earth from the harmful ultraviolet rays. The CFC molecules breaks down by the ultra violet radiations. The released chlorine atoms or fluorine atoms reacts with the ozone molecules resulting in the removal of ozone layer from the stratosphere. This is called as ozone layer depletion.
Which of the following measurements is used to compare the difference between objects in the solar system?
Match the part of the cell to its correct function.
1.
vacuole
2.
cell membrane
3.
cytoplasm
4.
mitochondrion
5.
Golgi body
6.
cell wall
7.
lysosome
8.
chloroplast
9.
endoplasmic reticulum
10.
DNA
11.
ribosome
12.
nucleus
a.
contains instructions on how the cell functions.
b.
controls the activities of the cell.
c.
supports and protects the organelles in the cell.
d.
strong layer around plant cells.
e.
controls what goes in and comes out of a cell.
f.
helps in the production and movement of materials.
g.
packages and distributes materials in and out of cells.
h.
supplies energy that cell uses.
i.
produces proteins for the cell.
j.
converts energy from the sun to food energy.
k.
serves as a temporary storage area for nutrients and waste materials.
l.
breaks down waste materials.
The parts of the cell together with their correct functions would be as follows:
Vacuole: serves as a temporary storage area for nutrients and waste materials.Cell membrane: controls what goes in and comes out of a cell.Cytoplasm: supports and protects the organelles in the cell.Mitochondrion: supplies energy that cell uses.Golgi body: packages and distributes materials in and out of cells.Cell wall: strong layer around plant cells.Lysosome: breaks down waste materials.Chroloplast: converts energy from the sun to food energy.Endoplasmic reticulum: helps in the production and movement of materials.DNA: contains instructions on how the cell functions.Ribosome: produces proteins for the cell.Nucleus: controls the activities of the cell.The cell consists of organelles that are specialized for specific functions. They all work together for the overall function of the cell.
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What best describes index fossils? Organisms that existed over a limited period . Organisms whose age is hard to detect. Fossils that are used in radioactive dating. Fossils of the most ancient organisms.
Answer:
A
Explanation:
I Big Bran
The statement (a) organisms that existed over a limited period describes index fossils.
What are index fossils?
Index fossils are fossils used to define and identify geologic periods. Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.
Moreover, index fossils are used to define geological periods. These fossils can be defined as "commonly found, widely distributed fossils that are limited in time span." If one finds an index fossil in a given layer, then one has bounds on the age of the layer. Using index fossils, the geological periods are defined.
Therefore, a good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.
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How many parts does the scientific name of an organism have?
1
2
3
4
Blue jays and robins do not interbreed. Assuming the blue jays and robins share the same habitat, describe the possible conditions that keep these birds repoductivly isolated. Explain your answer.
Which strand of mrna has the bases guanine-adenine-cytosine. Which amino acid corresponds to these bases
A- gln
B- Asp
C- Arg
D- cys
Answer:
The answer is: B- Asp.
Explanation:
Aspartic acid, symbols Asp, in RNA is encoded by the GAU or GAC codons.
The answer is: B- Asp.
how can pollutants like rat poison (liquid) transfer from a city to the ocean
HELP ASAPPPP PLZZZ
What does weight measure?
Quantity of matter in an object
How much space an object takes up
Force of gravity acting on an object
How long it takes for an event to occur
PLEASE HELP ME YOU WOULD BE A LIFE SAVER!!!!!!!!!!!!!!!!!!!!
Energy is transferred when
species change
species adapt
species eat
populations evolve
A genetic mutation occurs in a rabbit's muscle cell. This genetic mutation will be passed on to A. the cells of the rabbit's offspring. B. cells that are produced when the mutant cell divides. C. the cells that are next to the mutant muscle cell. D. the existing cells in the rabbit's body.
A genetic mutation in a rabbit's muscle cell will be passed on to cells that are produced when the mutant cell divides, as somatic cells, like muscle cells, transmit their genetic information to their daughter cells through mitosis. The correct answer is option B).
If a genetic mutation occurs in a rabbit's muscle cell, which is a type of somatic cell, the correct answer to where this mutation will be passed on is to B. cells that are produced when the mutant cell divides. This is because somatic cells divide through a process called mitosis, where genetic information is copied, or replicated, and passed on to the daughter cells.
It is important to note that the mutation will not be passed on to the rabbit's offspring (Option A) because it is not in a germ cell (i.e., sperm or egg cells), which are involved in reproduction. Mutation transmission to the cells next to the mutant cell (Option C) or to existing cells in the rabbit's body (Option D) does not happen because these cells do not receive DNA from the mutated cell directly.
Which statements correct
The genetic code is said to be Universal because a codon represents the same ______ in almost all organisms.
Amino acid pattern
Genetic codeLiving cells need a set of instructions called the genetic code to transform information encoded in genetic material into proteins.A codon is a three-nucleotide DNA or RNA sequence that codes for a certain amino acid.The genetic code is said to be Universal because a codon represents the same Amino acid pattern in almost all organisms.For more information:
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Within a species of short, ground-dwelling animals, two parents produced a group of offspring that were 1 cm taller than they were. These offspring were able to reach slightly higher vegetation than their parents and other members of the species. When the offspring grew up, they produced new offspring who were also slightly taller and could also reach the higher vegetation. This process continued over several generations such that offspring became gradually taller with time. Eventually, after many generations, all members of the species were at least 20 cm taller than the original two parents that produced the slightly taller offspring. What does this illustrate? A. Ground-dwelling animals would survive better if they evolve to be shorter. B. Slight differences between parents and offspring can eventually result in future generations that are very different from their ancestors. C. Biological change does not apply to ground-dwelling animals. D. Only major differences between parents and offspring can result in future generations that are very different from their ancestors.
How are DNA and RNA molecules alike? A) They are both double stranded. B) They both contain nitrogen bases. C) Their nitrogen bases always pair A - T and C - G. D) They are found in the nucleus and at the ribosomes. Eliminate
What is the result of mutation during meiosis
A- it organism will not be able to form some organs
B- The organism will not be able to live
C-The offspring of the organism will have a mutation
D- there will be silent mutations that will have no effect
yep he right is c bro
The result of mutation during meiosis is that the offspring of the organism will have a mutation. Thus, the correct option for this question is C.
What is Mutation?The mutation may be defined as a type of sudden, stable, and inheritable change in the genetic material of an organism. The agents that eventually cause a series of mutation within genetic material is known as mutagens. An organism that has undergone an event of mutation is known as a mutant.
Meiosis may be characterized as a type of cell division through which four haploid daughter cells are formed which are genetically unidentical to their parental cell. The gametic cells (sperm or egg cells) generally follow this mode of cell division and mutation in these cells will lead to mutation in the complete organism.
Therefore, the result of mutation during meiosis is that the offspring of the organism will have a mutation. Thus, the correct option for this question is C.
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A mutation occurs in a percentage of male birds that causes them to develop dull coloring. Out of 52 dull-colored birds, 13 birds successfully mated. Based on these numbers, what’s the probability that an individual dull-colored bird will successfully mate? The probability that an individual dull-colored bird will successfully mate is percent.
Probability of an individual dull-colored bird mating successfully equals the number of birds that successfully mated divided by the total number of birds
The answer is 25%
Answer:
25
Explanation:
Which process is neither an energy efficient or environmentally 'friendly' activity?
Answer:
Option-De-salinization of ocean water
Explanation:
Why?A process which will be more costly a terms of energy consumption, men work, and is neither efficient or environmentally 'friendly' is obtaining clean amount of water to drinking purposes from the ocean or sea water. As the process will require more machinery and it will be much costly for the public to purchase.
Alternatives!:The drinkable water or fresh amount required for a spending a healthy life can be obtained from any river or clean reservoir around the region, so, why waste time and money, along with the most important factor energy.
The conditions in a local area include temperature, atmospheric pressure, wind, and humidity. The combination of all of these conditions determines
A. the time of day
B. the weather in the area
C. the geology in the area
D. the climate in the area
The conditions in a local area include temperature, atmospheric pressure, wind, and humidity. The combination of all of these conditions determines the climate in the area. Hence, option D is correct.
What is climate?Climate describes the long-term weather patterns in a particular region. Climates in different areas can vary.
The polar, temperate, and tropical zones are neatly divided into three different climate zones by the three-cell convection model of each hemisphere.
The climate on Earth has undergone numerous significant changes. These have been brought on by a variety of natural phenomena, such as variations in the sun's activity, volcanic emissions, changes in the Earth's orbit, and carbon dioxide concentrations (CO2). Therefore, option D is correct.
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A sperm cell is produced by spermatogenesis. In order for the sperm cell to achieve a diploid state, what must occur?
A) The sperm cell must undergo meiosis.
B) The sperm cell must undergo mitosis.
C) The sperm cell must fertilize an egg.
D) The sperm cell must divide by cleavage.
Write the complementary dna strand for AATGAATAGCTAGCTT