Answer:
A. The gene coding for the antigen can be inserted into plasmids that can be used to transform the bacteria.
Explanation:
Genetic engineering is the process of manipulating an organim's genome in order to yield a desirable result. According to this question, a vaccine is to be created using an antigen that will trigger an immune response against the particular disease in the involved organism.
However, the antigens needs to be produced by genetically engineering/modifying bacteria. To do this, the gene coding for the antigen can be inserted into plasmids, an extra-chromosomal DNA, that can be used to transform the bacteria. In other words, the plasmid + antigen gene, which represents the recombinant DNA will confer upon the transformed bacteria the ability to produce the antigen.
Answer:
The gene coding for the antigen can be inserted into plasmids that can be used to transform the bacteria.
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Construct at least two possible hypothesis for the students experiment
Answer:The student's observations before he starts his experiment are that his tomato plants grew faster and taller with his artificial fertilizer rather than without any fertilizer at all.
Explanation:
i want brainliest pls
What needs to change so that only the green solutes diffuse across the membrane?
What need to be changed is ; The use of selectively/semi-permeable membrane
To selectively allow the passage ( diffusion ) of a certain type of solute through a membrane in a solution, we should make use of a selectively permeable membrane which allows only the passage of a certain type of solute contained in the solution ( like the green solutes ).
The use of permeable membrane in a solution is to selectively allow flow of solutes or solvent from a region of lower concentration to a region of higher concentration.
Hence we can conclude that what needs to be change is The use of selectively/semi-permeable membrane will allow only the green solutes to diffuse across.
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Why is it important to center the object you want to look at in your field of view before changing to a higher magnification objective lens? A. So the object is still in your field of view at the higher magnification. B. So you can always see the entire object at the higher magnification. C. So you do not damage the higher magnification objective lens.
Answer:
B. So you can always see the entire object at the higher magnification
Explanation:
A microscope is used to view objects smaller than the naked or unaided eyes can see. The objective lens, in conjunction with the occular or eye lens, is used to achieve this purpose. The objective lens are of different magnifications as follows: 10X, 40X, 100X etc.
However, as the magnification increases i.e. higher objective, the object in the field of view becomes smaller and less focused. Hence, the object in the field of view must first be centered at a lower magnification/objective lens before changing to a higher one in order for the entire object to be seen at a higher magnification.
air particles from areas of
Answer:
Size comparisons for PM particles. PM stands for particulate matter (also called particle pollution): the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke, are large or dark enough to be seen with the naked eye.
Explanation:
Directions Make a list of objects, products, and any other items around your house where plants were involved in the production of the item. You should have a list of at least twenty items. Then respond to the following questions: Note: Your list of objects and the answers following should be at least 200 words in length. What if plants no longer existed on Earth? How would your life be different?
Answer:
-20 items-
Bed
Cat
Dog
desk
water
stove
oven
chair
toilet
shirt
shampoo
shoes
backpack
food
socks
paper
pencil
table
mask
towel
If Plants no longer existed on earth then there would be no way for carbon dioxide to be converted into oxygen, without oxygen animals and humans alike would die. The Worlds "Air" would be toxic for us to breathe, we need plants to survive. Without plants, animals would die of starvation, and predators would as well without substance.
Help please
the classification level that includes the most specific traits
A. species
B. kingdom
C. class
D. order
The Garden Club of Monck's Corner is conducting a scientific experiment to determine which variety of flower will attract the largest butterfly population. The Garden Club has planted different varieties of flowers in a small garden in front of the town hall to attract the butterflies. The Garden Club will count and record the butterflies on each variety of flower each time they visit the garden.
What is the independent variable in the experiment?
A. variety of flowers planted.
B. location of garden
C. size of garden
D. size of butterfly population
((I need the questions a. and b. please)))
Answer:
Genotypic ratio: 2:2
Phenotypic ratio: 2:2
Explanation:
There are 2 combinations of Hh and 2 combinations of hh
There are 2 chances that the offspring will have 2 heads
There are 2 chances that the offspring will have 3 heads
Why don’t mosses grow very tall?
They need energy to make food, which they get by being close to the ground.
They don’t have roots, so they must be near water.
They need to send out spores via water.
They have seeds that need to roll away.
Answer:
Hello~
Llamalover here!
Mosses have some water-conducting cells, but they do not have the empty, lignin-reinforced cells that allow vascular plants to transport water with strong pressure gradients. Thus, mosses have very limited water transport ability and can't grow very tall.
So, your answer is They need to send out spores via water. I believe
Explanation:
Hope this helps!
Study of embryos of various organisms to show a common ancestor
because of similarities in development is know as ...
natural selection
speciation
embryology
evolution
How does aerobic respiration differ from anaerobic respiration ?
I need long answer, and correctly explained.
Aerobic: Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. (glucose + oxygen -> carbon dioxide + water). Anaerobic respiration also produces energy and uses glucose, but it produces less energy and does not require oxygen.
Homologous chromosomes
Definitions
What does homologous chromosome mean?
Fernanda is feeling sick and goes to the
doctor. Upon taking a blood sample, the
doctor observes that Fernanda's cells
contain a pathogen that seems to be made
of small cells with no nucleus. What type of
infection does Fernanda have?
bacterial
fungal
none of the above
viral
Answer:
bacterial
Explanation:
A prokaryotic organism is an organism that does not possess a membrane-bound nucleus that houses its genetic material. Organisms grouped under this domain are bacteria, archaebacteia etc.
According to this question, Fernanda goes for a blood sample because she felt sick. The result of the blood sampling shows that the cells of Fernanda contain a pathogen that seems to be made of small cells with no nucleus. This property describes a prokaryotic pathogen. Hence, the infection is most likely to be that of a BACTERIAL INFECTION.
Note that, a fungus is eukaryotic while a virus is considered non-living because it can only replicate in a living host.
What is different between lactic acid fermentation and aerobic cellular respiration?
Lactic acid fermentation works
Aerobic cellular respiration uses
Aerobic cellular respiration produces
ATP
Lactic acid fermentation produces
ATP
Explanation:
aerobic respiration process breaks down a single glucose molecule to yield 38 units of the energy storing ATP molecules. For the lactate fermentation, 2 molecules of ATP are produced for every molecule of glucose used.
What type of limb does a hen have?
Answer:
four limbs have ahen/ chicken
What is the purpose of a control in this experiment?
Question 9 options:
The control is the tube that only has milk in it.
The control is the one tube that we know will show milk digestion.
The control is the one tube that we know will not show milk digestion.
The control is the only one the scientist changes.
Answer:
I can't definitively answer this because I don't know the experiment, but I can help.
Explanation:
The "control group" of an experiment is like a dry simulation, where there is no variables changed across all the different trials you do. This is different from a dependent variable or an independent variable. Using your newfound knowledge of what a control group is you can automatically cross off the last option.
Since I cannot see what your experiment was I can't give you which of the top 3 answers it is however. You need to look at which one has no change.
If I were to blindly guess I would say the top option seems like the most likely answer.
why the ocean near Christchurch is a different temperature than we’d expect for its latitude (distance from the equator).
Answer:
Water moving from the equator is warmer than would be expected based on latitude, and so is warmer than the air it passes.
is a structure that the squid can force water through for movement by
propulsion. This is also the location where waste can exit as well as ink
Place the members of an ecosystem in the correct order
from smallest (or most specific) to the largest:
COMMUNITY
POPULATION ECOSYSTEM
INDIVIDUAL
Individual, population, community, ecosystem
Please look at the photo and help me ASAP
Answer:
1 red, 2 pink, 1 white
The outside part of the nucleus is called the _________.
jacket
cytoplasm
RNA
nuclear membrane
Answer:
Cytoplasm
Hope this helps!
Why are so many station miles used to gather weather data in the United States
Answer:
Why are so many station models used to gather weather data in the United States? Because the country is so large, and Earth's atmosphere is constantly changing, we need data from many stations to make accurate forecasts. ... A barometer is used to measure air pressure.
Explanation:
For Ascomycota, what structure's function is most similar to the function of a mushroom?
a
Ascus.
b
Ascocarp.
c
Antheridium.
d
Archegonium.
e
Ascospore.
Answer:
e. Ascospore
hope this helps
Can any body help me plzz
True/False: The law of conservation of matter applies to the cycle of photosynthesis and cellular respiration.
Answer:
It is true, The law of conservation of mass is tied to the fact that in chemical processes, atoms are conserved. Since every atom is contributed to the mass of reactants and products in a reaction, not losing any atoms is equivalent to not losing any mass.
PLS HELP AS SOON IS POSSIBLE
Nonnative species can cause serious problems with marine ecosystem biodiversity. The graph shows a summary of the different methods by which invasive species reach new locations based on United States Geological Survey data as of 2016. Based on this information, what recommendation could be made to reduce introductions?
A- Methods should be put in place to reduce the ability of species from escaping from captivity and establishing themselves in new locations.
B- People should take extra care when setting up a home fish tank to be certain that all organisms in it will be properly maintained so that the animals remain healthy and diseases are not spread.
C- Science should more closely study the genetics of the different organisms used to prevent mixing of DNA.
D- Ships should install some form of cleansing mechanisms before releasing their ballast water during transport and should be checked for unintended cargo.
Answer: D
Explanation: 20% of invasive species are introduced by Shipping so checking the ballast tanks in cargo ships would help the most I think
To reduce introductions of Non-native species, ships should install some form of cleansing mechanisms before releasing their ballast water during transport and also check for unintended cargo.
What are non-native species?Non-native species are also called invasive species. They are called so as they are foreign or not indigenous to a particular ecosystem and have been introduced to the said ecosystem by some unnatural methods.
These species show a high capacity for adaptation to their new environment. They quickly multiply and reproduce and therefore increase in population.
This sudden and unnatural increase in their population soon after they are introduced to a new environment will greatly affect the ecosystem of the new environment. The new species will compete with the native organisms of that environment for resources. This may cause the native flora or fauna to become endangered or even extinct.
The accidental introduction of invasive species happens quite often and causes a lot of problems. In a marine ecosystem, it happens a lot due to the ships that travel through a variety of marine regions.
So, ships should install some form of cleansing mechanisms before releasing their ballast water during transport and should be checked for unintended cargo.
Therefore, the correct option is D.
Read more about invasive species, here
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Who can help me fill this in
Answer:
a - flower
b - ovule
c - fruit
d - embryo
e - seed
f - seedling
Explanation:
what is the difference between mitosis and meiosis?
Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
What is true of all body cells except sex cells?
Answer:
You have it completely right!
Explanation:
The answer is C because the chromosomes are counted by the number of centromeres which are contained on chromosomes and chromatids!
Hybrid plants are more likely to be sterile than open-pollinated plants.
True
False
Answer: true
Explanation: