Answer:
chelpus is a hacker that hack paid apps from market and make it usable for free
Put the following steps of Meiosis in the correct order:
I. The cell divides into 2 daughter cells
II. Homologous chromosomes pair up in the center of the cell
III. Spindle fibers separate homologous chromosomes
IV. Chromosomes become shorter and thicker
A. I, II, III, IV
B. IV, III, II, I
C. II, III, I, IV
D. IV, II, III, I
What is Meiosis
Meiosis (listen); from Ancient Greek'lessening', since it is a reductional division) is a special type of cell division of germ cells in reproducing organisms that produce the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each chromosome (haploid). Additionally, before the division, genetic material from the paternal and maternal copies of each chromosome is crossed over, creating new combinations of code on each chromosome. Later on, during fertilization, the haploid cells produced by meiosis between a male and female will fuse to create a cell with two copies of each chromosome again, the zygote.
Errors in meiosis resulting in aneuploidy (an abnormal number of chromosomes) are the leading known cause of miscarriage and the most frequent genetic cause of developmental disabilities.
Learn more about Meiosis
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Question: Which of the followings are true of human genomic libraries? (More than one answer may be correct)
A. They contain the equivalent of the entire human genome, cloned into a vector.
B. They are likely to contain sequences derived from introns.
C. The use of the enzyme reverse transcriptase is crucial in their construction.
D. They contain DNA copies of the mRNAs present in a particular cell or tissue.
Answer:
B) They are likely to contain sequences derived from introns.
Explanation:
Name three ways that humans benefit from the use of seedless plants
Answer:
They support life by being the first vegetation to spring up on harsh terrain where soil is scarce. Even when they perish, seedless plants give back to nature. Certain seedless plants like moss and liverworts actually leave behind a layer of fertile soil for other plants when they perish.
Explanation:
Seedless plants have historically played a role in human life through uses as tools, fuel, and medicine. Dried peat moss, Sphagnum, is commonly used as fuel in some parts of Europe and is considered a renewable resource.
Which of the perspectives of science have you been exposed to the least?
Explanation:
Search it online it will help
What geological evidence could there be for the presence of an early ocean?
Select one:
a.
Marine sedimentary rocks can be dated back about 4 billion years.
b.
The iron contained in the rocks combined with the oxygen to form reddish iron oxides.
c.
Oxygen is needed to make ozone, a molecule made of three oxygen ions, O3.
d.
No animals would have been able to breathe in Earth's early atmosphere.
Answer:
i think the correct answer is D
What do you think will happen to the convention currents in the mantle if the interior of Earth eventually cools down
Answer:
No convention currents occur.
Explanation:
If the interior part of the Earth is cool down, it will leads to convection currents to stop. Due to this cool down of the earth's interior part cease the motion of the plates and the Earth would become geologically dead. Convection currents within the Earth's mantle occurs when the hot material rising upwards and then dropping back toward the core due to cooling so if the mantle is cool so no movement occurs as well as no convention currents.
Write the definition of the rate of ATP hydrolyzation, R, in your own words. How would you calculate the rate of ATP hydrolyzation, R, if you know the step size of the motor protein, s, and the average vesicle velocity, v
Answer:
ATP hydrolyzation is a process ( catabolic ) whereby chemical energy previously stored in phosphoanhydride bonds will be released by the process of bond splitting
R = Vesicle velocity / step size
Explanation:
The rate of ATP hydrolyzation can be explained by relating ΔG ( Gibbs free energy) and Q using this equation : ΔrGo + RT ln(Q). where ΔrGo = standard Gibbs energy change.
while ATP hydrolyzation is a process ( catabolic ) whereby chemical energy previously stored in phosphoanhydride bonds will be released by the process of bond splitting
Calculating R
R = Vesicle velocity / step size
Evalute paper bags versus poly bags on the following parameters strength, cost, reusability impact on environment
Answer:
Poly bags are more stronger than paper bags.
Explanation:
Poly bags are more stronger than paper bags due to the use of materials in it while on the other hand, cost of production on the poly bags is less than paper bags. Poly bags can't be reuse whereas the paper bags can be used. The poly bags causes more pollution in the environment due to its non-degradable nature as compared to paper bags that degrades easily and has a good impact on environment.
Which graph represents selection that may lead to reduced variation in a population?
A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population and population after selection have similar curves, but the original population peaks before the population after selection.
A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The population after selection increases, decreases, increases, and then decreases again. The original population increases at the point that the original population drops.
A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population peaks at the same time as the population after selection but the population after selection peaks higher and at a more rapid speed.
A graph has trait value on the horizontal axis and proportion of individuals on the vertical axis. The original population and population after selection have similar curves but the original population is slightly higher at all points.
Answer:
A graph has trait value on the horizontal axis and population of ... selection have similar curves, but the original population peaks
Answer: graph B
Explanation: :)
What would most likely happen if the number of shrimp decreased?
A. The plankton population would increase.
B. The salmon population would increase.
C. The salmon population would not change.
D. The plankton population would not change.
Answer:
A.
Explanation:
Shrimp eat plankton, so, if the number of shrimp decrease, the plankton will increase. hope I helped, and God bless you!
In sweet peas, the genes for flower color and pollen grain shape are 11 cM apart. A pure-breeding purple flowering plant with round pollen grains is crossed to a pure-breeding red flowering plant with long pollen grains. The resulting F1 offspring are all purple flowering plants with long pollen grains. What percent of offspring from a test cross analysis of the F1 individuals would you expect to be purple flowering plants with long pollen grains
Answer:
The correct answer is - 44.5%.
Explanation:
In this question, there are two traits are given, flower color and pollen shape. The purple flowers and long pollen are wild-type (dominant). Red flowers and round pollen are mutant or recessive. The cross is between a pure breeding purple and round pollen plant with red and long pollen plant. The offspring are all purple and long pollen plants. However, the offspring would be all heterozygotes genotype for both traits.
Linkage can be calculated as -
Linkage distance = % of recombinant offsprings formed in a test cross.
parental types are purple and long pollen, red and round pollen.
So, the recombinant type would be purple and round pollen, red and long pollen.
11% of the offspring would be recombinant type as the distance is 11cM. Therefore, 89% of the progeny would be parental type. Which means this 89% of parental offsprings have equal proportions of both phenotypes of parents. So, the purple flowers and long pollen would be half of 89%.
that is 89/2 = 44.5%.
hey everyone, What is earthquake mention the effects of earthquake.
Answer:
earthquake is what happens when two blocks of the earth suddenly slip past one another.
Explanation:
effects of earthquakes are ground shaking, ground rupture, landslides, tsunamis, and liquefaction
In a mob, all it takes is one dominant and electric individual to convince people to act through the
effect.
Answer:
Yes.
Explanation:
Yes, In a mob, one dominant and electric individual has the ability to convince people to act through the effect. This individual is the person who bring these people to fight for their rights and all the people of the mob obeys his orders and he is the only person who can stop these people from causing trouble and violence. All the people in the mob considered him their leaders and follow him in every decision.
Guinea pigs can produce different coat colors, white, brown, and mixed white/brown (agouti). The allele B is codominant with allele W (white coat). Cross an agouti-colored Guinea pig with a brown Guinea pig. What are the odds of the offspring?
Answer:
Brown
Explanation:because the agouti itself is a mixture that remains of a pale brown color and the melanin content in the animals is in the darker colors so it is more likely that the brown color is predominant to the agouti due to the content of melanin that it
The descendants of a cross between an agouti heterozygous (AB) colored Guinea pig and a brown (BB) colored Guinea pig are half heterozygous agouti, half homozygous brown. The correct option is A.
What exactly is codominance?Codominance is a genetic effect that happens whenever the alleles are expressed in heterozygotes.
In this particular instance, allele B co-dominates with allele W, resulting in heterozygous (WB) colored Guinea pigs like one of the parents.
Thus, the correct option is A.
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The missing options of the question are:
A. 1/2 heterozygous brown, 1/2 homozygous agouti.B. 1/2 homozygous white, 1/2 heterozygous brown.C. 1/4 homozygous brown.D. 1/2 heterozygous agouti, 1/4 white.Is cell division a continuous process?
Illustrate with an example
Answer:
Cell division is the means of reproduction in unicellular organisms whereas it is the means of tissue growth and maintenance in multicellular organisms. ... In adults, cell divisions are involved in renewing old tissues rather than growth.,ya it is continuously processing
what happen to Potato chips when put into salt water?
Answer: the potato chip becomes a substance that is soft and very floppy
Cystathioninuria can be caused by two different mutations in the enzyme cystathionase. Cystathioninuria caused by mutation 1 can be overcome by providing cells with increasing concentrations of the coenzyme pyridoxal phosphate. Which of the following statements describe the most likely changes in the binding affinities of the two mutant enzymes?
A. Both mutant enzymes have lost the ability to bind the substrates.
B. The enzyme with mutation 1 has lost the ability to bind to the substrates, whereas the enzyme with mutation 2 has lost the ability to bind to pyridoxal phosphate.
C. The enzyme with mutation 1 has decreased affinity for pyridoxal phosphate, whereas the enzyme with mutation 2 has lost the ability to bind to the substrates.
D. Both mutant enzymes have lost the ability to bind pyridoxal phosphate.
Answer:
C. The enzyme with mutation 1 has decreased affinity for pyridoxal phosphate, whereas the enzyme with mutation 2 has lost the ability to bind to the substrates.
Explanation:
A coenzyme is an organic cofactor that binds with an enzyme in order to initiate or aid the function of the enzyme. A coenzyme binds to the active site of the enzyme (where the reaction occurs), thereby triggering its activation by modifying protein structure during the reaction. Some examples of coenzymes include Coenzyme A and Adenosine triphosphate (ATP). Pyridoxal phosphate is a coenzyme (it is the active form of vitamin B6) that is required for the function of cystathionase. Moreover, cystathionase is an enzyme that enables cells the synthesis of cysteine from methionine (transsulfuration pathway). The binding of pyridoxal phosphate to the enzyme increases the binding affinity of the enzyme for the substrate, thereby influencing its activity. In this case, it is expected that mutation 1 reduces the binding affinity of the enzyme to the cofactor, and thereby the cofactor is required at a higher concentration to restore normal enzyme activity.
Glycolysis occurs in
1) mitochondria
2) cytoplasm
3) ER
5) Plastids
làm sao bảo quản để bánh không lên
Answer:
which language is this ?
Suppose a researcher introduces a mutation into the glucosidase domain of the mammalian glycogen debranching enzyme. The mutation inhibits the activity of the glucosidase but does not affect the other functions of the enzyme. The researcher then introduces the mutated enzyme into mammalian cells that do not express wild type glycogen debranching enzyme. Predict the effect of the mutation on glycogen metabolism.
Answer:
cells will have glycogen molecules with branches of a single glucose residue
Explanation:
Glycogen debranching enzymes are proteins that catalyze the removal of branching from glycogen, which is a multibranched polysaccharide composed of glucose units and serves as a form of energy storage. These enzymes have two catalytic activities on a single polypeptide chain: glucosyltransferase and glucosidase activities, which are both required for glycogen breakdown. Glycogen degradation requires both glycogen phosphorylase and glycogen debranching enzymes. First, a glycogen phosphorylase acts to digest a glycogen branch down to four glucose residues. Subsequently, the debranching enzyme through its glucosyltransferase activity acts to transfer three glucose residues to a nearby branch of the glycogen chain. Finally, through its glucosidase activity, the debranching enzyme cleaves the remaining α-1,6 linkage in order to release free glucose.
What was the name of your fish sample, according to the restaurant menu?
Types of Sashimi (slice of raw fish) listed on the restaurant menu:
1. Escolar – Super white tuna
2. Maguro – Big eye tuna
3. Hamachi – Yellowtail
4. Tai – Red snapper
5. Nama Sake – Salmon
6. Saba – Mackerel Fish
normally, yellowtail and salmon is served as sashimi but im not sure I don't really get the question lol
Under normal conditions the sympathetic division is usually active in the body resting heart rates are influenced by nor epinephrine the parasympathetic system keeps heart rate lower than the heart would beat on its own. all of the above are true
Answer:
the parasympathetic system keeps heart rate lower than the heart would beat on its own.
Explanation:
The parasympathetic nervous system (PNS) is one division of the autonomic nervous system. The vagus (parasympathetic) nerves that innervate the heart release acetylcholine in order to slow the heart rate by decreasing the slope of the pacemaker potential. Acetylcholine activates a type of G-coupled protein receptor known as muscarinic receptors, allowing for a parasympathetic reaction in the cardiovascular system (where these receptors are expressed), and thereby decreasing cardiac output by inhibiting heart rate. During rest, PNS predominates and controls the heart rate at a resting rate of 65-80 beats/minute (bpm), if parasympathetic nerves to the heart are cut, then the heart beats at its own rate of about 100 bpm.
where in an embryo are the instructions located for how to build organs
Answer:In the nucleus
Explanation:
The information for all bodily functions resides in DNA in every cell.
A thermometer is placed in water in order to measure the water’s temperature. What would cause the liquid in the thermometer to drop?
Answer:
The molecules in the water spread apart. The molecules in the thermometer's liquid spread apart. When a thermometer was placed in water to measure the water’s temperature. the molecules in the thermometer liquid which is often mercury spreads apart and rises, this shows a temperature increase in the thermometer.
Phân tích các quy luật hoạt động thần kinh cấp cao ở trẻ và vận dụng trong thiết lập thói quen học tập và kỉ luật ở học sinh tiểu học.
Answer:
very different than ducks do u want it is not the
The organisms that harness non-biological energy and convert it to biologically relevant/useful energy are called __ 1 __ _. The organisms that consume these are called __ 2 __ _ (it should end in -ores) which occur at the ___ 3 ___ trophic level. The number of trophic levels that any ecological system will primarily dependent on the __4__ organisms.
Answer:
The organisms that harness non-biological energy and convert it to biologically relevant/useful energy are called __autotrophos or producers_. The organisms that consume these are called _herbivores_ (it should end in -ores) which occur at the __second_ trophic level. The number of trophic levels that any ecological system will primarily dependent on the _consumer_ organisms.
Explanation:
In the trophic web occurs energy transference through organisms occupying different levels in the chain. Each level feeds on the preceding one and becomes food for the next one. The first link is occupied by autotroph organisms, which are the producer. The following links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.
Every link has an effect on the superior links and the immediately anterior link, meaning that whenever one of the links changes, the other ones will be affected.
Autotrophs or producers synthesize inorganic substances, such as light, and turn them into organic matter according to their own needs. These organisms are photoautotrophs, such as plants, or chemoautotrophs. They occur at the first trophic level.
Heterotrophs are those incapable of producing their own organic matter, so they feed on producers, depending on them to get proteins and energy. In the trophic chain, heterotrophic organisms occupy the first, second, or third consumer level, after producers. These animals can be herbivorous, carnivorous, omnivorous, hematophagous, ichthyophagous, and etcetera. All of them depend on autotrophic organisms.
In the particular case of herbivores, they occur at the second throphic level feeding on producers and being eaten by carnivores.
In general, most trophic chains are composed of 4 or 5 levels, depending on the number of consumers present, and the energy transference between levels.
the matter in an animal body is not capable of moving and changing without ?
Answer:
Energy
Explanation:
The matter in an animal body is not capable of moving and changing without energy.
Which was ventures contribution to science
Which type of transport is used to move a molecule from a region of low
concentration to a region of high concentration?
A. Active transport
B. Osmosis
C. Passive transport
D. Diffusion
SUBMIT
Answer:
A.(Active transport) is used to move a molecule from a region of low concentration to a region of high concentration.
A = active transport
active transport is the movement of molecules or ions from a region of their low concentration to that of their High concentration across a Semipermeable membrane with the use of oxygen
Chlorophylls are a. seen best in carrots, beets, and red ferns. b. pigments that absorb only blue and green wavelengths. c. the main pigments that absorb the wavelengths most efficient at driving photosynthesis. d. All of the answers are correct.
Answer:
....kghvkhbiblyhlugkufv
Explanation:.....
Answer:A
Explanation:
I think A because they are all plants
