Answers
Answer:
D
Explanation:
Related Questions
The difference between PCR and real-time PCR is thatA. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.B. real-time PCR can amplify DNA a billion-fold within just a few hours, while standard PCR cannot.C. real-time PCR can determine the DNA sequence, while standard PCR cannot.D. real-time PCR uses DNA polymerase, while standard PCR does not.
Answers
Answer:
The correct answer is A. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.
Explanation:
PCR (Polymerase Chain Reaction) is a molecular biology technique. Conventional PCR and real-time PCR are diferent types of PCR, and are both used to exponentially amplify DNA molecules. In both types, a polimerase enzyme is employed to sinthesize DNA copies. The main difference is that conventional PCR is qualitative whereas real-time PCR is quantitative. So, real-time PCR permits not only to detect and amplify DNA but also permits to perform a quantification of the target DNA. This is accomplished by measuring a fluorescence signal - which is directly the amount of DNA amplified- during the course of the reaction.
What does the limnetic, profundal, littoral, and benthic zones have in comman?
Answers
Answer:
B - (Edge 2021)
Explanation:
They are all zones found in freshwater systems.
True or False? a human has 23 chromosomes
Answers
Answer:
False
Explanation:
A cell normally contains 23 pairs of chromosomes.
how are pure carbon, oxygen, hydrogen different from thecompoundethanol which contains all three of those elements
Answers
Carbon, oxygen, & hydrogen may all be elements found in ethanol, but when separated, they have completely different chemical compounds. They are pure elements where as ethanol is a mixture.
Give the mRNA and amino acid sequence of the DNA code below.
DNA Code: TAC AAA ACC ATG ACT
mRNA Codon: ___ ___ ___ ___ ___
amino acid: ___ ___
___ ___ ___
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What is an essential characteristic of members of a given species?
the ability to produce eggs or live offspring without sexual reproduction
the ability to reproduce with members of another species
the ability to reproduce with one another and have fertile offspring
the ability to reproduce with organisms outside of their local gene pool
Answers
Answer:
the ability to reproduce with one another and have fertile offspring.
Explanation:
An essential characteristic of the members of a given species is the ability to reproduce with one another and have fertile offspring. Thus, the correct option is C.
What are the characteristics of a species?A species is a group of organisms which are living in an area with similar characteristics which are capable of exchanging genes and chromosomes and produce new organism similar to itself. The species are important as it maintains the equilibrium in the ecosystem.
A species can be defined as the largest group of organisms with the two individuals of the appropriate sexes can produce a fertile offspring, typically through sexual reproduction. The species can also be defined on the basis of their karyotype, DNA sequence, morphology, behavior or ecological niche.
Therefore, the correct option is C.
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dy÷dx=(x-1)(x+3) at x=2
Answers
Answer:
[tex]\dfrac{dy}{dx}=\dfrac{4}{25}[/tex]
Explanation:
The given expression is :
[tex]y=\dfrac{(x-1)}{(x+3)}[/tex]
We need to find dy/dx at x = 2
[tex]\dfrac{dy}{dx}=\dfrac{d}{dx}(\dfrac{x-1}{x+3})\\\\=\dfrac{(x+3)\dfrac{d}{dx}(x-1)-(x-1)\dfrac{d}{dx}(x+3)}{(x+3)^2}\\\\=\dfrac{x+3-(x-1)}{(x+3)^2}\\\\=\dfrac{x+3-x+1}{(x+3)^2}\\\\\dfrac{dy}{dx}=\dfrac{4}{(x+3)^2}[/tex]
Put x = 2 in above expression
[tex]\dfrac{dy}{dx}|x=2=\dfrac{4}{(2+3)^2}\\\\=\dfrac{4}{25}[/tex]
Hence, the value at dy/dx is [tex]\dfrac{4}{25}[/tex]
small fish find shelter amongst the branching coral.
How does this make the reef a hearty food web?
Answers
Answer:
uhmmm going out on a limb probably because they can get trapped in the coral
which element is NOT found in DNA? a. Nitrogen b. oxygen c. sulfur
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Answer:
sulfer
Explanation:
PLSSS MAMM HELP
Fossils cannot tell us anything about living organisms.
Please select the best answer from the choices provided
T
F
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Answer:
false
Hope it will help you.......Which of the following shows some, but not all, characteristics of life?
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Peter's Grandma has very severe memory loss. Which of the following could she be suffering from?
A. Spina bifida
B. Quadriplegia
C. Epilepsy
D. Alzheimer's
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Peter's Grandma with very severe memory loss is suffering from Alzheimer's.
What is Alzheimer?Alzheimer is a progressive disease that destroys memory and other important mental functions.
Alzheimer causes the brain cell connections and the cells themselves to degenerate and die, eventually destroying memory and other important mental functions.
Thus, we can conclude that, Peter's Grandma with very severe memory loss is suffering from Alzheimer's.
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Digestion of ___ begins in the stomach. Select one: a. starch and proteins b. starch and triglycerides c. triglycerides and proteins d. starch and all other oglio-orpolysaccharides
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Answer:
c.triglycerides and proteins
pls hurry In which parts of the cell cycle would chromosomes be paired up? Check all that apply. interphase metaphase I anaphase II telophase II metaphase II telophase I
Answers
Answer:
metaphase I
Explanation:
The cell cycle encompasses the series of processes that divides a cell into daughter cells. The cell cycle is made of mitosis and meiosis, which are the types of cell divisions. Meiosis occurs in two division steps namely: meiosis I and meiosis II.
The stages in these meiotic process are prophase I and II, metaphase I and II, anaphase I and II, and telophase I and II. Note that, meiosis I involves homologous chromosomes while meiosis II involves sister chromatids. According to this question, Chromosomes pair up in the PROPHASE I stage and remains paired in the metaphase I stage until the separate in the Anaphase stage. Hence, chromosomes will be paired up in the METAPHASE I stage.
List three man-made causes of the destruction of the world's coral reefs.
Answers
Answer:
pollution, over fishing, mining coral
Explanation:
Which statement best explains why this occurred?
Answers
What is the atomie number of Fluorine
Answers
Answer:
Atomic number of Fluroine is 9 :)
Explanation:
Answer:
9
Explanation:
The atomic number of Fluorine is 9 because its the 9th element on the periodic table
HELP PLS Danielle lives with her family on a farm. In school, she has been learning about the nitrogen cycle in science class. She knows that her father spread a nitrogen-based fertilizer on a patch of grass recently where the cows graze in the field. Why was it necessary to add a nitrogen-based fertilizer to the soil where there was a patch of grass?
a.because nitrogen can only be “fixed” by lightning
b.because there are no decomposers on the farm
c.because bacteria released all of the nitrogen into the air
d.because plants cannot use “free” nitrogen
Answers
It necessary to add a nitrogen-based fertilizer to the soil where there was a patch of grass - d. because plants cannot use “free” nitrogen.
Nitrogen cycle is the series of processes where nitrogen converts into its compound move through the environment and in living organisms.
The processes here include fixation, ammonification, nitrification and denitrification.Majority of Earth's atmosphere is nitrogen.Nitrogen fixation is the process allows free nitrogen to available for plants.Plants can not use free nitrogen their for they require fixation and nitrogen fixating bacteria in nature.nitrogen fertilizers provide nitrogen for plants in soil therefore it necessary to add a nitrogen-based fertilizer to the soil.Thus, It necessary to add a nitrogen-based fertilizer to the soil where there was a patch of grass - d. because plants cannot use “free” nitrogen.
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When an organism dies, carbon dioxide can still be transported out of its nerve cells, but calcium
ions cannot. Suggest the reason for this difference.
Answers
Answer:Oxygen availability is often a limiting factor for cell survival, and it is generally ... An organism is faced with the following problem: How can the composition of ISF be ... which ensures proper exchange of oxygen and carbon dioxide; the kidney, ... to carry out its function of bringing blood close to cells so that the exchange of ...
by RN Pittman · 2011 · Cited by 54 · Related articles
Explanation:
On the pH scale, 14 is a(an)
O base
O acid
O mixture
O salt
Answers
Select all that apply... A. Are very willing to give up a proton B. are very willing to accept a proton C. Want to become more positively charged D. Do not accept or give up protons
Answers
Answer:
c and a
Explanation: i used a text book
What animal lives in the Antarctic lands and dwells on seals? Also is top of the food chain?
Answers
Answer:
Polar Bear.
Explanation:
what are application of Sonar technique
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Answer:
NOAA scientists primarily use sonar to develop nautical charts, locate underwater hazards to navigation, search for and map objects on the seafloor such as shipwrecks, and map the seafloor itself.
Which option distinguishes why Johnny refused to eat the pie in the following scenario?
Johnny is cutting fast food out of his diet and is increasing his fruit and vegetable intake an effort to
lose weight. At a family dinner, apple pie was served for dessert, but Johnny politely declined.
The baked apples contain more sodium and nitrates than whole, uncooked apples.
O The baked apples are more nutritious than uncooked apples, but this is offset by added sugar
The baked apples contain more carbohydrates and sugar than uncooked apples.
O The baked apples in the pie are a whole food, which contains more calories than processed.
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I need help with this please
Answers
Answer:
the amount of carbon in the cycle can increase or decrease based on the number of factories present.
Explanation:
In the carbon cycle, carbon is exchange along many different forms on earth. Carbon is the main component of biological compounds, and it is released from organisms when they die or when fossil fuels are burned, hence, the diagram demonstrates this.
Plz help. For my grades
Answers
Answer:
Ig it's the point B which shows decrease in the population of predators or individuals.
Which process or occurrence removes carbon from the atmosphere.
Animals
Forrest fires
Oceans
Decomposition
Answers
An explosion can quickly change chemical energy into:
sound, heat, and electricity O
light, electricity, and sound
light, heat, and electricity
sound, heat, and light
Answers
Answer:
sound,heat,and electricity
Answer:
sound light and heat! it right im 100% sure
Explanation:
Explain how pasteur's experiment supported the idea that cells only come from other cells. Explain how it failed to support the idea of spontaneous generation.
Answers
Answer:
Pasteur and Tyndall Louis Pasteur's 1859 experiment is widely seen as having settled the question of spontaneous generation. He boiled a meat broth in a swan neck flask. ... When the flask was turned so that particles could fall down the bends, the broth quickly became clouded.
Explanation:
Compare sequence 2 with sequence 1 and describe the mutation that has occurred.
Answers
Answer:
but is it rlly
Explanation: