Answer:
1. Isolation of donor DNA fragment or gene.
2. Selection of suitable vector.
3. Incorporation of donor DNA fragment into the vector.
4. Transformation of recombinant vector into a suitable host cell.
5. Isolation of recombinant host cell.
Answer:
Explanation:
In standard molecular cloning experiments, the cloning of any DNA fragment essentially involves seven steps: (1) Choice of host organism and cloning vector, (2) Preparation of vector DNA, (3) Preparation of DNA to be cloned, (4) Creation of recombinant DNA, (5) Introduction of recombinant DNA into host organism, (6) ...Human skin comes in a variety of
shades, from pinkish white to dark
brown. How did this variation arise?
Answer:
Based on everything that you have learned so far, provide an explanation for how the different shades of skin color from pinkish white to dark brown evolved throughout human history. Darker skin colors evolved because they provided increased fitness in early human populations living in equatorial Africa.
Explanation:
The first phase of Mitosis is _________ . In this phase the DNA condenses down into ________, and the duplicated separate. The second phase of Mitosis is_______ . In this phase the sister chromatids line up on the _______ plate through a push and pull motion as they connect to the microtubule spindle fibers emanating from the ________. The third phase of Mitosis is________ . In this phase the________ (sister chromatids or homologous chromosomes) are pulled apart. The fourth phase of Mitosis is_______ . In this phase the nuclear ________starts to reform and the DNA de-condenses.
MITOSIS:
This question is describing the process of mitosis, a kind of cell division that results in two genetically identical daughter cells. Mitosis consists of four stages namely: prophase, metaphase, anaphase, and telophase etc. PROPHASE is the first stage of mitosis where DNA condenses down into CHROMOSOMES, and the duplicated separate.METAPHASE is characterized by the lining up of sister chromatids at the CELL PLATE through a push and pull motion as they connect to the microtubule spindle fibers emanating from the CENTROSOME. ANAPHASE is the third stage of mitosis in which duplicated chromosome/sister chromatids are pulled apart into opposite poles. The fourth stage is TELOPHASE where the NUCLEAR MEMBRANE starts to reform and the DNA de-condenses.Learn more at: https://brainly.com/question/3327479?referrer=searchResults
how does the anti tetanus serum prevent tetanus
Answer: It is used to prevent tetanus in those who have a wound that is at high risk and have not been fully vaccinated with tetanus toxoid. It is also used to treat tetanus along with antibiotics and muscle relaxants. It is given by injection into a muscle.
Explanation:
a medication made up of antibodies against the tetanus toxin. It is used to prevent tetanus in those who have a wound that is at high risk and have not been fully vaccinated with tetanus toxoid. It is also used to treat tetanus along with antibiotics and muscle relaxants.
Consider the following story:
“During the summers when Xavier was a young boy (around 8 years old), his grandfather would take him to northern Ontario to go fishing on weekends. Shortly after his grandfather died his family left Ontario. He was never able to clearly remember the fishing trips. When he was 30 years old he moved back to Ontario with his wife. One weekend they decided to take a trip to northern Ontario to spend the weekend at a resort on one of Ontario’s many lakes. When they got out of the car, they were overwhelmed by the aromatic smell of the trees in the heavily wooded area by the lake. Suddenly, memories of the wonderful weekend fishing trips with his grandfather came flooding back to the him.”
Discuss the following questions:
Is this an example of a repressed memory? If not, why not?
If it’s not a repressed memory, then what is it? What accounts for the sudden re-emergence of this buried memory?
Could this account for other, more traumatic, kinds of “repression” as well?
Answer:
No.
Explanation:
This is not an example of a repressed memory because these are the good memories whereas the repressed memory are bad memories of childhood. It may be infantile amnesia due to the inability of adults to bring episodic memories memories of situations or events that occurs in their childhood. The sudden re-emergence of this buried memory is the experience of the same situation or place or event that occurs in the childhood. If a person visit to a same place which he gone in their childhood so the person remember the buried memory.
Which metamorphic rock is foliated and coarse grained?
a. quartzite
b. hornfels
C. slate
d. gneiss
Answer:
Gneiss
Explanation:
Quartzite and Hornfels are both non-foliated metamorphic rocks. Slate is foliated but is fine-grained, which leaves us with Gneiss, which is a foliated, coarse-grained metamorphic rock
A mountain showed the following change in profile over millions of years.
Time
What happened to most of the material removed from the mountain?
Select one:
o
-A:The material disintegrated from exposure to sunlight.
-B:The material weathered to form new sediments.
-C:The material was destroyed by chemical reactions.
-D:The material was absorbed by plant roots.
Answer:
b
Explanation:
What is an invasive species? *
A species that is found in an ecosystem.
A species that once was in an ecosystem.
A species that has different niches in the same habitat.
O A species that is introduced to an area.
Answer:
An invasive species is an introduced organism that negatively alters its new environment. Although their spread can have beneficial aspects, invasive species adversely affect the invaded habitats and bioregions, causing ecological, environmental, and/or economic damage.
answer sheet of Grade 10 science what I have Learned module 2 Quarter 3
Choose the statements that are TRUE about Surface Tension..
a. It is a measure of how difficult it is to break the surface of a liquid.
b. It causes water drops to be nearly round (perfect spheres in zero gravity situations!)
c. It helps keep water flowing through a living thing.
d. It occurs because water molecules are bonded to other water molecules and you have to break that bond to break them apart.
Answer:
d
Explanation:
when a cell goes through mitosis and cell division, the two new cells have _?
Answer:
D. Same number of chromosomes as the original cell
Explanation:
Mitosis is a kind of cell division which results in two daughter cells that are genetically identical to one another and the parent cell. Mitotic division causes each daughter cell to contain the SAME NUMBER OF CHROMOSOMES as the parent cell.
For example, a somatic human cell contains 23 pairs of chromosomes. If this cell undergoes division by mitosis, the two daughter cells that will result will contain 23 pairs of chromosomes each. This means that the two new cells that results from mitosis have the same number of chromosomes as the original cell.
Morphine is created from what type of plant
Per my research, Morphine is one of the many, and pharmacologically most important, opium poppy alkaloid (Papaver somniferum). A poppy plant consists of a lot of alkaloids.
Explanation:Correct me if I am incorrect but this is what I got during my research. Have a good one and I hope this somewhat helped.
✍(◔◡◔)When two parents heterozygous for genes for curly hair are crossed, what percent of their offspring would have curly hair? What percent would have straight hair?
Answer:
75% curly
25% straight
Explanation:
When two parents' heterozygous for genes for curly hair are crossed, 75% of their offspring would have curly hair, while 25% of their offspring would have straight hair.
What do you mean by Heterozygous?Heterozygous may be defined as the presence of two different alleles at a particular locus. It always includes one normal allele and one mutated allele.
Here, the allele for curly hair is dominant over the allele for straight hair. So, the offspring who carry the pure dominant and heterozygous alleles for curly hair would have the phenotype of curly hair, while the offspring who carry both the recessive allele would have the phenotype of straight hair.
Therefore, when two parents' heterozygous for genes for curly hair are crossed, 75% of their offspring would have curly hair, while 25% of their offspring would have straight hair.
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Austin made the claim that meiosis provides an advantage for sexually reproducing organisms by ensuring genetic variation
Which statement explains why he is correct
A. Meiosis allows the offspring produced during sexual reproduction to grow and develop
B meiosis joins together the sex cell during sexual reproduction to produce new offspring
C meiosis produces sex cells that are joined during sexual reproduction to produce offspring
D meiosis produces the body cells that join to form new offspring during sexual reproduction
Answer: C. meiosis produces sex cells that are joined during sexual reproduction to produce offspring
Explanation:
Meiosis is also called as reduction division in this the parent diploid cell divides twice to produce four haploid daughter cells. The daughter cells so produce after cell division contain half the number of chromosomes then that of the parent cells. The germ cells in males and females divide twice or meiotic division occurs in them twice to produce four daughter haploid gamete cells that are sperms (male) and ovum (oocyte) (female). These male and female gametes fuse during sexual reproduction. The sperm fertilizes an ovum to produce zygote.
Answer:
c
Explanation:
Which form of water is not considered as a resource? A) groundwater B) glacial ice C) ocean water D) water vapor E) surface water
Answer:
D. water vapor
Explanation:
water vapor is a gas and could not be used as a resource
Reefs grow best in _______. a. deep water b. low salinity c. temperatures below 25°C d. shallow water
Answer:
D
Explanation:
Reefs
1 salty water
2 maximum sun
3 73° F or higher
The region of the stem nearest the seed.
Answer:
B. Hypocotyl
Explanation:
Starting with spore dispersal, and identify adaptations in the life cycle of the bryophyte for living in a terrestrial environment (ie, in air, without water surrounding the plant body). What are new stresses associated with living on land, and what morphological or physiological features did the first land plants have to evolve to cope with these stresses
Answer:
Stresses such as lack of nutrients, space, competition and water availability.
Explanation:
Lack of nutrients, space, competition and water availability are the stresses that the bryophyte can experience by living on land. The morphological or physiological features such as lowering transpiration rate by stomata, attain specialized structures to collect sunlight and fulfill water requirement by absorbing water from the air if no water is available in the soil etc are the features that the plant has to attain to cope with these stresses.
How does using public transportation to get to school or work help slow
down climate change?
Select one:
The fuel consumption of public transportation is less per passenger.
Public transportation is faster. Traveling fast allows you to burn less fuel.
Public transportation makes frequent stops. Making frequent stops reduces
your energy needs.
The cost of public transportation is less per passenger. This makes is more
efficient
Answer:
The fuel consumption of public transportation is less per passenger.
Through what process do eukaryotes reproduce asexually?
Answer:
It is the characteristic feature of eukaryotic cell that it reproduces sexually. But, it can also reproduce asexually. Asexual reproduction is often referred to as cell division and it occurs through mitosis. On the other hand, sexual reproduction occurs through meiosis.
Explanation:
pls tell me if im wrong ill change it
Answer:
Eukaryotes grow and reproduce through a process called mitosis. Some eukaryotic organisms also reproduce asexually through processes such as budding, regeneration, and parthenogenesis.
Explanation:
What is the answer to this problem in the photo
Answer:
the figure in the picture shows the structure of a carbohydrate.
Explanation:
carbohydrates are made up of carbon, hydrogen, and oxygen.
Which is not a chemical process in the
digestive system?
A. Bile interacting with digested food
in the small intestine
B. Acids reacting with food particles
in the stomach
C. Saliva breaking down food
particles
D. Chewing of food
Answer:
the process of chewing food is not a chemical process bt the process of tasting the food is a chemical process
lf you find this helpful plz follow me
and mark my answer
Chewing of food is not a chemical process in the digestive system, but a mechanical process. Therefore, the correct option is D.
What is Digestive system?A collection of organs called the digestive system help break down food into smaller molecules that the body can absorb and use for energy, growth, and repair. It consists of anatomical organs such as the anus, esophagus, stomach, small and large intestine, liver, and pancreas. Food is broken down physically and chemically by the digestive system, which also absorbs nutrients and gets rid of waste.
Chemical process of digestive system involves Bile interacting with digested food in the small intestine, acids reacting with food particles in the stomach and saliva breaking down food particles while the mechanical process involves chewing of food.
Therefore, the correct option is D.
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What are the bonds of dna
Answer:
The bonds are covalent and hydrogen.
~Hoped this helped~
Interferons play a vital role in the immune system. Why are interferons so important?
Interferons can interfere with viral replication
Interferons can inhibit cell division
All the answers above are correct
Interferons can combat bacterial and parasitic infections
Answer: all the answers above are correct
Explanation:
Without doing a Punnett square, predict what percentages of
offspring the cross among a heterozygous slipper footed
pigeon and a non-slipper footed would create:
Answer:
50% slipper footed, 50% non-slipper footed
Why does a cell need to copy its DNA before undergoing mitosis?
change to indirect speech
1, he said,"what a wonderful event it is!"
Answer:
he said that the event was wonderful
Now that we have studied the various types of vaccines, consider the current resurgence of diseases like the measles. How can we convince the general public and possibly even ourselves, that immunization is a necessary preventative measure for diseases that have serious complications? Is there a different schedule that we should consider? Are some forms of vaccines safer than others? Should we spread out the inoculation schedule to prevent confusion of a young person?
Answer:
Immunization is one of the most effective processes of preventing or treating dangerous disease. It should be told and advertise to the general public about the facts and importance of vaccination. Doctors and government should explain the reports and ratio that the people who are taking the vaccination in the proper dose and the right amount of vaccination are about 9 timeless likely to have to the other people. It is essential to get a proper dose and proper amount to avoid the development of resistance.
There are several forms of vaccine and they have a different schedule from each other. Every vaccine is safe but one needs to know the cycles, dose and amount of the vaccine. Yes, we should spread out the inoculation schedule to prevent confusion of a young person.
4. Which of the following statements about magnetic materials TRUE?
A, Magnetic materials will attract other magnetic materials,
B, Magnetic materials will be attracted to magnets,
C. Magnetic materials will be repelled by magnets,
D, Magnetic materials will repel other magnetic materials,
Answer:
All of them seems true tho
Answer:
B I think..
Explanation:
Matching type:
1. ribosome
2. smooth ER
3. mitochondrion
4. nucleus
5. Golgi apparatus
6. lysosome
7. centriole
8. cytoskeleton
9. inclusion
10. plasma membrane
11. nucleolus
a. main site of ATP synthesis
b. encloses the chromatin
c. sac of digestive enzymes
d. examples include glycogen granules and ingested foreign materials
e. forms basal bodies and helps direct mitotic spindle formation
f. site of protein synthesis
g. forms the external boundary of the cell
h. site of lipid synthesis
i. packaging site for ribosomes
j. packages proteins for transportation
k. internal cellular network of rodlike structures
Answer:
1. ribosome---- f. site of protein synthesis
2. smooth ER---- h. site of lipid synthesis
3. mitochondrion---- a. main site of ATP synthesis
4. nucleus---- b. encloses the chromatin
5. Golgi apparatus---- e. forms basal bodies and helps direct mitotic spindle formation and j. packages proteins for transportation
6. lysosome---- c. sac of digestive enzymes
7. centriole---- k. internal cellular network of rod like structures
9. inclusion---- d. examples include glycogen granules and ingested foreign materials
10. plasma membrane---- g. forms the external boundary of the cell
11. nucleolus---- i. packaging site for ribosomes
Explanation:
Ribosome is considered as a site of protein synthesis, smooth endoplasmic reticulum is the site of lipid synthesis , mitochondria is the main site of ATP production, nucleus encloses the chromatin material inside it, Golgi apparatus forms basal bodies and helps direct mitotic spindle formation and also packages proteins for transportation, lysosome is a sac of digestive enzymes , centriole consists of internal cellular network of rod like structures , inclusion has examples include glycogen granules and ingested foreign materials, plasma membrane forms the external boundary of the cell and nucleolus has the function of packaging site for ribosomes.
The functions of various cell organelles are as follows: Ribosome is responsible for protein synthesis, smooth endoplasmic reticulum synthesises lipids, mitochondria produces ATP, nucleus encloses chromatin material, Golgi apparatus forms basal bodies and aids in mitotic spindle formation and protein packaging for transportatio.
Lysosome contains digestive enzymes, centriole is composed of a cellular network of rod-like structures, inclusion contains glycogen granules and foreign materials, pla
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Indicate whether each of the following occurs mainly in G1 phase (G), S phase (S), or G2 phase (H) of the cell cycle. Your answer would be a four-letter string composed of letters G, S, and H only, e.g. HGSS. ( ) DNA helicase activation ( ) DNA helicase deposition on DNA at the replication origins ( ) ORC phosphorylation ( ) Licensing of replication origins
Answer:
the answer is S-G-S-G
Explanation:
DNA helicases are enzymes that catalyze the unwinding of the double DNA helix in order to form a replication fork at the origin of replication (i.e., the site where DNA replication starts). DNA replication occurs in a bi-directional manner by two replication forks that move in opposite directions in order to form a replication bubble. The origin of replication is formed during the transition from mitosis to G1 when they are licensed for the subsequent S phase. The origin recognition complex (ORC) is a DNA binding complex that binds to the origin of replication, whose function is to act as a scaffold for the assembly of initiation factors. ORC is phosphorylated during the beginning of the S phase in order to dissociate this complex from chromatin.