1- The two strands of the DNA double helix are held together by _______ bonds between base pairs.I
2- DNA replication, each strand of DNA serves as a _______ for a newly synthesized strand of DNA.
3- In gene expression, DNA is used as a template to make _______, which is then used as a template to make a polypeptide.
4- In the process of _______, DNA can be rearranged, which contributes to the genetic diversity of the species.
5- What are the differences between the structures of DNA and RNA?
6- How can the central dogma help us understand the process by which DNA is turned into protein? What are the two steps involved in the process of gene expression?
7- Why are replication and recombination two important roles of DNA?
Answer:
1.hydrogen
2.template
3.mRNA
4.recombination
5.DNA and RNA are both made up of nucleotides. RNA is comprised of adenine, uracil, guanine, and cytosine. DNA is made up of adenine, thymine, guanine, and cytosine. DNA is a double-stranded chain of nucleotides comprised of base pairs that form a double helix. RNA is often a single-stranded chain of nucleotides.
6.The central dogma states that DNA contains the genetic code needed to make proteins—a process known as gene expression. Transcription and translation are the two steps involved in gene expression. In transcription, the DNA code is turned into RNA. In translation, the RNA sequence provides instructions to the cellular machinery to manufacture polypeptides, which become proteins.
7.Replication is the duplication of DNA, and it is important because, in cell division, each daughter cell must contain an exact copy of the original cell's DNA, since DNA contains the instructions required to make all of the cell's tissues. Recombination is the natural process for genetic sequences in a chromosome or between chromosomes to exchange genetic information. Recombination is important in nature because it produces genetic variations that may be preserved because of natural selection. Recombination also can be used in the laboratory to combine the genetic code of two different organisms.
Explanation:
PENNFOSTER answer
Answer:
1. hydrogen
2. template
3. mRNA
4. recombination
5. DNA and RNA are both made up of nucleotides. RNA is comprised of adenine, uracil, guanine, and cytosine. DNA is made up of adenine, thymine, guanine, and cytosine. DNA is a double-stranded chain of nucleotides comprised of base pairs that form a double helix. RNA is often a single-stranded chain of nucleotides.
6. The central dogma states that DNA contains the genetic code needed to make proteins—a process known as gene expression. Transcription and translation are the two steps involved in gene expression. In transcription, the DNA code is turned into RNA. In translation, the RNA sequence provides instructions to the cellular machinery to manufacture polypeptides, which become proteins.
7. Replication is the duplication of DNA, and it is important because, in cell division, each daughter cell must contain an exact copy of the original cell's DNA, since DNA contains the instructions required to make all of the cell's tissues. Recombination is the natural process for genetic sequences in a chromosome or between chromosomes to exchange genetic information. Recombination is important in nature because it produces genetic variations that may be preserved because of natural selection. Recombination also can be used in the laboratory to combine the genetic code of two different organisms.
Explanation:
How can you help prevent water pollution?
a. Don't use weed killer in the yard
b. Don't put grease in the kitchen drain
C. Use less clean water
d. All of the above
Answer:
D: all of the above
Explanation:
Question 14 (2 points)
A series of organisms listed in a way that shows which is a food source for another is
called a(n)
A
while an)
Ą
is made up of multiple connected energy paths in an ecosystem.
Answer:
a
Explanation:
the answer is a ecosystem
which of the following is NOT a natural resource?
A gold
B water
C oil
D fire
Answer:
D
Explanation:
Fire is man made because for there to be fire you have to strike a match or use other man made sources
The Paleozoic era would last for how many days?
Answer:
ti it ran about 544 mybpbto it ranii it last 544 mybp to 245 mybp d.
Explanation:
The Paleozoic era lasted for approximately 291 million years. The The Paleozoic Era is a significant period in the geological history of the planet.
The Paleozoic Era, commonly referred to as the Age of Ancient Life, is a key period in the geological history of the Earth, lasting roughly between 541 and 252 million years ago. The Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian are its six distinct time eras. The Paleozoic Era saw incredible evolution and the creation of numerous life forms, which laid the groundwork for the diversity of life that can be seen on Earth today. Life underwent a remarkable period of diversity during the Cambrian Period known as the "Cambrian explosion." Trilobites, brachiopods, and early arthropods were among the complex, hard-shelled animals that first emerged as a result of this surge.
To know more about Paleozoic era, here:
https://brainly.com/question/1698817
#SPJ6
What role do organisms, such as bacteria or fungi, that feed on and break down dead plant or animal
matter and make nutrients available play in an ecosystem?
producers
predators
decomposers
consumers
NO LINKS
Organisms that are members of the family Coccinellidae are heterotrophic, reproduce sexually, and are multicellular. Knowing this, we can be certain they belong to which kingdom? А Animalia B Plantae C Eubacteria D Protista
Answer:
they belong to kingdom (A). Animalia.
Drag four of the terms to the space below the matching image
Answer:
The order they go is (from left to right)
Organ system, Organism, Organ, Cell
Explanation:
A organism is made of multiple organ systems like humans (respiratory system, cardiovascular system, etc.)
A organ system has multiple organs like veins, heart, etc.
A organ is made of lots of cells
A cell is the unit of life.
what is an adaptation
Answer:
a change or the process of change by which an organism or species becomes better suited to its environment
Explanation:
Answer:
ad·ap·ta·tion
/ˌadapˈtāSH(ə)n/
Learn to pronounce
noun
the action or process of adapting or being adapted.
"the adaptation of teaching strategy to meet students' needs
"filming her adaptation of a beloved children's book
Explanation:
Just search it up
How many proteins and amino acids can be found in your body?
A. 4 amino acids, 20 proteins
B. 20 amino acids, hundreds of proteins
C. 4 amino acids, hundreds of proteins
Answer:
B 20 amino acids, hundreds of proteins
Explanation:
I hope this helped :)
What is the difference between national legislation and international treaties
Answer:
The main difference between international and national law is that international law regulates external relations between two or more countries by the signing of treaties and agreements concerning trade, war, the sea or oil, whilst national law or domestic law is applied within the boundaries of a country
OBJECTIVE TEST
1. Which of the following statements about science is not correct?
A. Science has made life comfortable for man
B. Science has provided answers to all questions raised by humans concerning nature
C. Science has made the world look smaller
D. Science has shown the best way of solving problems
Answer:
c. Science has made the world look smaller
Explanation:
Honestly speaking, science has definetly made the word a larger and better place.
What is NOT an example of nitrogen fixation?
A: Lightning changing nitrogen to nitrogen compounds
B: Cows changing nitrogen to nitrogen compounds
C: Bacteria on plant roots changing nitrogen to nitrogen compounds
Which of the following is NOT an effective water conservation
echniques?
a. Using low flush toilets
b. Public outreach campaigns
C. Using showerheads that limits water flow to 4.5 gallons per day
d. Mulching around trees and plants
e. Having large production monoculture farms
Answer:
e
Explanation:
It worsens the quality of the soil
8. The graph below shows the reaction rates of two different reactions. Which of the following statements could explain the difference in the two reactions?
Answer:
These two reactions have different reactants, bonding and catalysts.
Explanation:
The two reactions are different from one another due to fusion of different reactants as well as different products. These two reactions may have different types bonding i.e. covalent, ionic or metallic bond etc between their atoms. In these two reactions, different types of catalyst are used which helps in speedup the chemical reaction so we can conclude that these two reactions have different reactants, bonding and catalysts in their chemical reaction.
my claim is I think we need to change the grouping penguins of Gentoo and Adelie. i just need evidence and reasoning, this is SCIENCE hurry
Answer:
Emperor penguins are likely to pair with different mates the next breeding season; only about 15 percent pair with the same mate the following year. Adelie penguins, meanwhile always breed with the same mate as long as they both return to the same nesting ground.
Creation of marine reserves to protect Adélie penguin food sources and foraging areas.
Explanation:
OK THIS IS SO TRUE |
(look in pic)
Answer:
fr
Explanation:
ayyyy check out my last questions
Name one trophic level that contains autotrophs and one trophic level that contains heterotrophs.
Answer:
producers and secondary consumers
Explanation:
autotrophic means they make their own food. such as plants and heterotrophs is anything that eats other things to obtain energy. so this could be the second or third trophic level just depends on all the information you are given and what you want to choose.
The name of one trophic level that contains autotrophs is Producers, while the name of one trophic level that contains heterotrophs is the primary consumer.
What do you mean by Trophic level?A Trophic level may be defined as a sequential position of organisms in a food chain of an ecosystem.
Autotrophs are those groups of organisms that synthesize their own food in the presence of sunlight. They are the foundation of the trophic level.
Heterotrophs are those groups of organisms that depend on autotrophs in order to take energy for metabolism and other work.
Therefore, the name of one trophic level that contains autotrophs is Producers, while the name of one trophic level that contains heterotrophs is the primary consumer.
To learn more about Trophic level, refer to the link:
https://brainly.com/question/20082405
#SPJ2
Which of the following is true about folds?
A
They do not create mountains.
B
They are entirely broken rock plates.
C
They occur only in the inner core.
D
They can create deep valleys.
Answer:
D. they can create deep valleys
Explanation:
Hope this helps ⭐
They can create deep valleys is true about folds.
What are Deep valleys?
The combined effects of gravity, water, and ice result in valleys, which are low-lying sections of land that have been eroded and washed out. Some are hollow, while others hang.
The majority of primary valley cuts are made by rivers and streams, creating sides with high walls and a narrow floor that from a distance resembles the letter "V." The steepness of the sides and the width of the floor are both influenced by the gradient of the river, or how quickly it descends.
Waters add to the land's natural twists as they move toward the sea by removing sediment from bends' exteriors.
Therefore, They can create deep valleys is true about folds.
To learn more about Deep valleys, refer to the link:
https://brainly.com/question/30333289
#SPJ6
Explique en que consiste el funcionamiento del SNC y SNP en el acto reflejo mencionando a lo menos 2 características del proceso
Answer:
SNP → Envía la información de los estimulos al SNC (neuronas aferentes) y lleva una respuesta hacia los efectores (neuronas eferentes).
SNC → Recibe la informacion que envia el SNP, la procesa y envía una respuesta hacia el organo efector (interneuronas).
Explanation:
Al hablar del arco reflejo se hace referencia a la secuencia de pasos que se llevan a cabo para que el cuerpo reaccione ante un estímulo externo.
En términos gerenales, el sistema nervioso periférico recibe informacion a modo de estimulo del medio externo. Esta información es enviada al sistema nervioso central, donde se procesa y se envía una respuesta adecuada en función del estimulo. Este mecanismo es el arco reflejo.
Existen tres tipos de neuronas involucradas en el arco reflejo.
Neuronas aferentes o sensoriales Interneuronas Neuronas eferentes o motorasModo de acción:
Rama ascendenteEl estímulo llega al cuerpo y es recibido por receptores sensoriales especializados que responden a ellos. La información recibida por estos receptores, es convertida de energia del estímulo (temperatura, luz, presión, etc) a energia del potencial de acción.
Las neuronas aferentes, ubicadas en la dermis y epidermis, reciben la información de los receptores, reaccionan al estímulo y envian esa información al sistema nervioso central a modo de impulsos nerviosos.
Rama descendenteUna vez que la información llega al sistema nervioso central, es procesada por las interneuronas, quienes cumplen la función de análisis y procesamiento de toda la información para enviar una respuesta. Las interneuronas manejan muchas de las señales sensoriales, las evaluan, las comparan, y envian una respuesta motora.
Las neuronas eferentes reciben esta respuesta de las interneuronas, y son estimuladas para llevar estas nuevas señales desde el sistema nervioso central hacia las células de los organos efectores. El órgano efector en general puede ser un músculo o una glándula.
Finalmente, el tejido de destino responde al estimulo a modo de contracción, en caso de tratarse de un músculo, o de liberación hormonal, en caso de tratarse de una glándula.
Después de la fecundación, la célula recién formada llamada cigoto lleva a cabo divisiones sucesivas hasta desarrollar un nuevo individuo. Estas divisiones se llevan a cabo mediante el proceso llamado
Answer:
Después de la fecundación, la célula recién formada llamada cigoto lleva a cabo divisiones sucesivas hasta desarrollar un nuevo individuo. Estas divisiones se llevan a cabo mediante el proceso llamado segmentación.
Explanation:
Luego de que se produce la fecundación del óvulo y se forma el cigoto, los 3 a 4 días que le siguen abarca un proceso llamado segmentación. En este proceso se producen sucesivas divisiones celulares dando blastómeros, los cuales son células que forman el embrión y a las estructuras que este necesita para desarrollarse. La segmentación es un proceso que ocurre en las trompas de falopio mientras el cigoto se desplaza hacia el útero donde se implantará.
What strategies should be considered for an HIV vaccine?
-What is DNA replication?
-Where does it happen?
-Why does it happen, to prepare for what?
-What model explains how DNA replication works?
-Use a picture to show and explain semi conservative
-What is Chargoff's rule? How is it different in RNA?
-What are mutations?
-What is the difference between point and frameshift mutations?
I hope this helps answer your question.
what happened to the oil when you first dumped it into the water? explai the effects of oil spills on the ocean ecosystem
The letter of the DNA based that pair with the following DNA strand
Explanation:
The four nitrogenous bases are A, T, C, and G. They stand for adenine, thymine, cytosine, and guanine. ... Adenine always pairs with thymine, and cytosine always pairs with guanine. The pairing nature of DNA is useful because it allows for easier replication.
Which of these best describes fossils ?
A .nonexistent
B. Easily formed
C. Important and rare
D.common and unhelpful
Answer:
C
Explanation:
When a population of organism eats another, how can each population as well as the ecosystem change?
A fossil is the hardened remains or imprint of a previously living organism.
true or false
Answer:
True
Explanation:
Fossils are preserved remains of organisms. They are preserved in two ways. They can be the actual remains of organisms.
What path will an incoming stimulus follow?
a. Spinal cord to sensory neuron to brain
b. Brain to sensory neuron to spinal cord
c. Sensory neuron to spinal cord to brain
Answer: C
Explanation:
The sensory neurons picks up impulses and passes them via the spinal cord through the relay and motor neurons and finally to the brain.
will give 15 points and brainliest just awnser like
1.ghkdigh
2.ighdf
3.ygf
and so on thanks!
Answer:
1.Law of conservation of energy
2. Energy transformation
3.Friction
4. electric, thermal
5. Kinetic, Potential
6. Potential, Kinetic
7.Kinetic
8.Radiant, electrical
9. Electrical
10. Radiant