Answer:
Before replication can occur, the length of the DNA double helix about to be copied must be unwound. In addition, the two strands must be separated, much like the two sides of a zipper, by breaking the weak hydrogen bonds that link the paired bases.
Explanation:
have a nice day :)
The length of the DNA double helix that is about to be duplicated must first be unwound before replication can take place.
What is DNA?Additionally, the weak hydrogen bonds between the paired bases must be broken in order to separate the two strands, much like the two sides of a zipper.
Positive sigma, which indicates the percent of supercoiled and wounded DNA, and the same negative sigma, which indicates the percent of DNA that was left unwounded in the presence of isomerase.
Denote the superhelical activity of DNA seen during replication during the absence of topoisomerase and will cause DNA to become more and more wounded and stop the replication process.
Therefore, DNA double helix that is about to be duplicated must first be unraveled before replication.
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Could yall help me out with these 3 questions , please ASAP!! I’ll give Brainliest !
Answer:
Speed equals by distance :True
Question 2: True
Question 3: False
Explanation:
Answer:
first one true second false third true
Explanation:
PLEASE ONLY DO THIS IF YOU KNOW IT
Match these items.
. Orion
1 measure of distance
4 celestial
2 . home of the solar system
3 . constellation
5 winter constellation
6 . star pattern
7 light year
8 cosmology
North star
9 zodiac
. origin of the universe
wanderers
of the sky
. Polaris
planets
Milky Way
path of sun and planets
Answer:
165329847 te amo bro that's it
Help please I have no time
Answer:
C
Explanation:
the leopard, Lion and tiger are of the same" Panthera" genus
please mark as brainliest
The cell membrane of an animal cell is damaged due to a bacterial infection.
What function is most immediately affected by the damage?
Choose 1 answer:
A
Transport of materials into and out of the cell
B
Protein synthesis
C
ATP synthesis
D
Storage of genetic material
Answer:
A
Explanation:
The cell membrane would be damaged and A describes what the cell membrane does. Hope this helps!
4. What is the difference between cytology and histology?
O A. Cytology is the study of the normal functioning of tissues, while histology is the study of
the abnormal functioning of tissues
O B. Cytology is the study of tissues, while histology is the study of cells.
O C. Cytology is the study of cells, while histology is the study of tissues.
O D. Cytology is the study of the normal functioning of cells, while histology is the study of the
abnormal functioning of cells.
Answer:
C. Cytology is the study of cells, while histology is the study of tissues
Explanation:
Just learned about cytology, and searched up histology, and it is about tissues. Every other answer is wrong.
Hope this helped :)
Answer:
C. Cytology is the study of cells, while histology is the study of tissues.
Explanation:
It's a hot summer day & you decide to mow the lawn, Mowing the lawn will be an intense activity, but your lawn is small & will take you only 10
minutes to mow. Before mowing you want to have a snack,
1. Name the 4 biomolecules that are found in different foods:
Answer:
Carbohydrates, proteins, lipids and nucleic acids.
Explanation:
Biomolecules are organic and are carbon containing and are of four types which are carbohydrates, proteins, lipids and nucleic acids.
Carbohydrates are part of our major diets and are found in grains, fruits and vegetables and so on.
Carbohydrates are energy producing food through glucose.
Lipids contain both fat and oil and they are hydrocarbon and non polar molecules that don't dissolve in water. They provide energy, insulation in the environment and are major constituent of plasma.
Proteins are organic molecules found in meat, milk, beans, cheese e.t.c.
They are body building food or serve as building blocks.
They are enzymes and hormones which are involved in body mechanisms.
Nucleic acids are composed of deoxyribonucleic acid(DNA) and ribonucleic acids. They are the genetic constituent of living organisms and they carry the genetic information.
The process in which nitrogen is converted into a usable form for life is called _______.
a.
nitrogen fixation
b.
photosynthesis
c.
greenhouse effect
d.
photolysis
The answer is nitrogen fixation
Answer:
(A) nitrogen fixation
Explanation:
edg 2020
Answer:
A
Explanation:
Edge 2020
Type the correct answer in the box. Spell all words correctly. What is the correct term for blocked sunlight and reduced solar radiation as a result of a volcanic eruption? When dust and ash particles from a volcanic eruption block out sunlight and reduce solar radiation, Earth experiences the . This results in temporary climate cooling.
Answer:
Haze effect
Explanation:
I got it right on edmentum
Where do chromosomal mutations begin?
Why do chromosomal mutations occur?
Answer:
A chromosome mutation is an unpredictable change that occurs in a chromosome. These changes are most often brought on by problems that occur during meiosis (division process of gametes) or by mutagens (chemicals, radiation, etc.).
Explanation:
Brainliest please?
Answer:
1) Different types of chromosome mutations can originate in the germinal cells.
2) Chromosome mutations are alterations occurring in chromosomes that typically result from errors during nuclear division or from mutagens. ... Abnormal chromosome numbers result from nondisjunction, or the failure of chromosomes to separate correctly during cell division.
Explanation:
This is what i found on the internet :/
help please i keep getting it wrong and it’s difficult
Answer:
Searching
Explanation:
Try to search up each one, and match the image with the one. Im sorry this isnt the answer but thats how you find it. And with number 6 and 4 search it up on google and you will get it.
ILL MARK YOU BRAINIEST ASAP!!!I DONT GET THIS UGHHHHHH!!!!! SOME BIO QUESTION ON MITOSIS....IMAGE BELOW
Answer:
a anaphase
Explanation:
prophase metaphase Anaphase telophase the cytokenisis
Answer:
a anaphase
Explanation:
Influenza (the flu) is caused by a virus that attacks the respiratory system. Which type of gene is most likely to be widely expressed in the body of someone who contracts the influenza virus?
the gene that controls the production of stem cells
the gene that controls the production of skin cells
the gene that controls the production of red blood cells
the gene that controls the production of white blood cells
Answer:
D is the correct option.
Explanation:
all my answers got deleted.
Answer: THE ANSWRER IS D
Explanation: I TOOK THE TEST
Would you expect the entire crop grown from your preferred stalk to show the characteristics of the parent crop? Explain your answer.
Answer:
Over the ages the tendency of crop improvement efforts has been to select varieties with traits that give the highest return, largely by concentrating on genetic strains that combine the most desirable traits. The resulting homogeneity and uniformity can offer substantial advantages in both the quantity and quality of crop harvested, but this same genetic homogeneity can also reflect greater susceptibility or pathogens. Thus it appears the more that agricultural selection disturbs the natural balance in favor of variety uniformity over large areas, the more vulnerable such varieties are to losses from epidemics. The increased risks presented by genetic selection and the increased cultivation of only a few selected cultivars are easily perceived. Chapters 1 and 2 of this reports focus on crop vulnerability, because it is a broadly recognized problem. The issue of genetic vulnerability, however, is only one of several important problems affecting the management of global genetic resources.
How does DNA polymerase move along each strand of DNA?
A. Both move towards the replication fork
B. Both move away from the replication fork
C. One moves towards from the replication fork and the other moves away from it
D. There is only one DNA polymerase on the DNA at a time
Answer:
c i think
Explanation:
Answer:
B
Explanation:
This sort of replication, since it involves one nucleotide being placed right after another in a series, is called continuous. Whereas the DNA polymerase on the leading strand can simply follow the replication fork, because DNA polymerase must move in the 5' to 3' direction, on the lagging strand the enzyme must move away from the fork.
what materials make up the cell membrane
Answer:
Lipids, Proteins, and carbohydrates
Explanation:
I did this once and I got it right, I hope you get it right too
Answer:
the material that makes up the membrane cell is the phospholipids, cholesterol, proteins, and carbohydrates.
Explanation:
CAN I HAVE Brainiest p.s. please
Please help ASAP I have 10 minutes left
Use the diagram to the right to answer the following.
At which location would earthquakes be least likely to
occur?
Select one:
A.3
B.4
C.2
D.1
what happens to the energy stored in something that is thrown away
1. Which of the small solar system bodies orbit the sun in only a few years or as many as hundreds of thousands of years?
Meteors
Meteorites
Comets
Asteroids
Answer:
Comets
Explanation:
I got the answer
The roots of plants are important to photosynthesis because they... A. remove glucose from the plant. B. remove oxygen from the plant. C. provide the water needed. D. provide the carbon dioxide needed.
Answer:
C. provide the water needed
Explanation:
Plants cannot absorb water effectively through the stem or leaves, so they have roots to absorb moisture (and nutrients) from the soil
Noah is a 3-year-old boy recently diagnosed with epilepsy. He presented to his pediatric advanced practice registered nurse (APRN) in a primary care clinic with 2 weeks of increased seizure activity after a medication change. Symptoms also included a sudden increase in lethargy, ataxia, and drowsiness. Test results showed elevated ammonia, liver function, and an abnormal electroencephalogram reading. Which cell organelle is not working properly?
Answer:
Mitochondria
Explanation:
Mitochondrial diseases are a group of diseases caused by dysfunctional mitochondria, organelles that generate energy for the cell. Mitochondrial diseases are often caused by mutations, acquired, or inherited in the mitochondrial DNA or nuclear genes that code for respiratory chain complexes in the mitochondrion. Mitochondrial diseases involve multiple organs and show heterogeneous and unpredictable progression. The most common clinical presentation of mitochondrial diseases is encephalomyopathy, and epileptic seizures can frequently occur as a presenting sign of mitochondrial encephalopathy.
just 23 and 24 please and thank you.
Answer:
6he interphrase would be 34 and the meter phrase whoud be 49 if i am correct
Explanation:
Answer:
23- 69.9%
24- 8.9%
Explanation:
those are both percentages because there's cells in each and everyone of the stages
What is the twisted ladder shape of the DNA called?
:3-D model
:nucleotides
:double helix
:single strand
Answer:
C the person above i think is correct because I’ll try the answer I’ll, tell you if it right :)
Explanation:
After I finish the quiz: yes it is correct
explain how the repiratory and the circulatory system work together. To make gas exchange possible.
Answer:
here's the more, get to the point answer: so the circulatory system is responsible for gas exchange between tissues and blood that we need. All living creatures (including us) have blood and that blood absorbs oxygen and releases carbon dioxide to/in the lungs (respiratory system). Thus the circulatory and respiratory system helps us to obtain oxygen and discharge carbon dioxide
Explanation:
hope this helps
Answer:
The two systems work together in several ways. First, the respiratory system brings oxygen in the air to the alveoli in the lungs. The circulatory system then delivers the oxygen to the cells. Second, the circulatory system picks up carbon dioxide from the cells and carries it to the lungs, where it is released when we exhale.
Explanation:
This is what I did thank you have a nice day
A group of 100 female water fleas was placed in each of three culture jars of different sizes. The graph below shows the average number of offspring produced per female each day in each jar.
A) water fleas have fewer offspring when they are thinly populated.
B) the ability of a water flea to produce offspring is affected by population density.
C) the reproduction rate of water fleas increases steadily after 20 days.
D) water fleas produce more offspring when they are crowded together.
Answer:
B
Explanation:
They grow more when they are less densely populated
HELP ASAP WILL MARK BRAINLIEST! Idk if my answer is right please help
Dr. Wicked administers a toxin that causes a synthesized protein to be improperly packaged and incorrectly delivered to the wrong destination by this cell.
Which labeled structure is the most likely target of the toxin causing this issue in the cell?
Choose 1 answer:
(Choice A)
Structure A
(Choice B)
Structure B
(Choice C)
Structure C
(Choice D)
None of these labeled structures would be a target of this toxin.
Answer:
It's Choice C.) Structure C
Explanation:
Trust me
The best target of toxin to cause improper packaging and targeting is Golgi body.
Packaging and Targeting of protein:
Protein is transported to Endoplasmic reticulum. ER vesicles fuse with Golgi body. In Golgy body protein's post transnational modification occur.Therefore the best target of toxin to cause improper packaging and targeting is Golgi body.
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11/13/2020
SCS 20-21 SCI BIOLOGY_#1
Question #4
Bacteria called thermophiles have been discovered that can live in natural hot springs unlike most
bacteria that cannot survive extreme heat. Using genetic engineering techniques, the heat resistant gene
in these thermophiles has been isolated and then inserted into wheat and corn cells in an attempt to
develop crops that can withstand global warming.
Which statement suggests a possible reason for inserting the thermophilic gene into the crops?
A
The wheat and corn now have increased tolerance to increased salinity levels, so the enzymes
inside their cells will not be denatured by salt allowing them to survive as the sea level rises.
B
The wheat and corn now have increased tolerance to heat, so the enzymes inside their cells will not
be denatured by extreme heat, allowing them to survive the increase in global temperatures.
С
The wheat and corn now have increased tolerance to cold, so the enzymes inside their cells will not
be denatured by extreme cold allowing them to grow in the Antarctic and Arctic regions.
D
The wheat and corn now have increased tolerance to a lower pH, so the enzymes inside their cells
will not be denatured by changing pH due to increased global temperatures allowing them to
survive
Nuaction #5
Answer:
D
Explanation:
A genetically modified organism (GMO) is any organism whose genetic material (DNA) has been modified by genetic engineering. In agriculture, GMO plants with resistance to abiotic and biotic factors have been developed.
The statement "the wheat and corn now have increased tolerance to heat, so the enzymes inside their cells will not be denatured by extreme heat, allowing them to survive the increase in global temperatures" suggests a possible reason for inserting the thermophilic gene into the crops (Option B).For example, Bt crops are GMOs capable of synthesizing proteins that are selectively toxic to insect pests but are innocuous to humans and animals. These GMO crops (Bt crops) were developed by inserting certain genes from Bacillus thuringiensis (Bt) bacteria into corn and cotton.Some genetic engineering techniques used for inserting genes and thus develop GMOs include the use of viral vectors, microprojectile bombardment, electroporation. microinjection, etc.In conclusion, the statement "the wheat and corn now have increased tolerance to heat, so the enzymes inside their cells will not be denatured by extreme heat, allowing them to survive the increase in global temperatures" suggests a possible reason for inserting the thermophilic gene into the crops (Option B).
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50 pointss!! Name three things that threaten the water supply. How do you believe you can correct one of these problems in your city and/or state?
Answer:
Microbes, salts, and pollution from agriculture and industry all contribute to the problem. Global warming will likely have major impacts on the world's freshwater resources.
Explanation:
Water source protection involves the protection of surface water sources and the protection of groundwater sources from contamination of any kind. Water source protection includes basic measures and rules such as the installation of a fence around the source or the banning of grazing animals in the surrounding area.
Biological pest control involves
Answer:
eliminating pests with pesticides
Explanation:
For question 1, circle the choice that correctly completes the sentence.
1. Genetic information is bundled into packages of (DNA/RNA / chromosomes/
centrioles) known as (DNA/RNA / chromosomes / centrioles).
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Actually Welcome to the Concept of the Biology
So the answer is,
Genetic Information is bundled into packages of DNA known as Chromosomes.
Answer:
DNA for first one chromosome for second
Explanation: