Streptomycin treatment is used in medicine. It s growth is to expose a sample of E.coli to streptomycin by innoculating it into a streptomycin positive plate. any colonies that grow will carry a mutation for resistance.
Streptomycin treatment is known to boast or increase the growth of E. coli by nitrate respiration.Streptomycin is simply regarded as an antibiotic which is often used to treat moderate to severe tuberculosis, pneumonia, E. coli, etc.
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How will you select and grow a resistant strain of E.coli in this experiment?multiple choice:
(1). expose a sample of E.coli to streptomycin by innoculating it into a streptomycin positive plate. any colonies that grow will carry a mutation for resistance,
(2.) expose a sample of E.coli to sterptomycin by innoculating it into a streptomycin negative plate, any colonies that grow will carry a mutation for resistance,
(3.) samples of bacteria are taken from the culture and observed under a microscope for signs of susceptibility or resistance. those that are resistant are separated and plated.
(4.) a culture of E.coli will be mixed with streptomycin so that the antibiotic can alter the genetic composition of the bacteria
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Under the hypothesis of blending inheritance, what color(s) would the offspring of a black cat and a white cat be
Under the hypothesis of blending inheritance, the offspring of a black cat and a white cat would be GREY. This theory is not now accepted.
Blending inheritance is an erroneous theory from the 19th century that proposed that offspring inherit phenotypic traits as 'average values' observed for such traits in their parents.
Mendel's laws of heredity (i.e., the Law of Segregation and the Law of Independent Assortment) showed that blending inheritance is based on erroneous concepts.
Moreover, incomplete dominance is an inheritance pattern different from blending inheritance because incomplete dominance refers to the observation that in certain traits both gene variants or 'alleles' are expressed in heterozygous individuals.
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2. Reproduction is the function of both_____and organisms.
Answer:
it's plants pls brainliesttt
Answer:
2. Reproduction is the function of both__Meiosis___and organisms.
whats one difference between the ways aristotle and theophrastos classified plants?
Answer:
Aristotle classified animals based on where they lived, while Linnaeus instead used an animal's morphology, evidence from both fossil records and living organisms.
mention 3 ways in which the lack of care to the coral reefs can be resolved
Answer:
1 Recycle and dispose of trash properly.
2 Use environmentally-friendly modes of transportation.
3 Save energy at home and at work
Explanation:
How are glucose and ethanol similar in structure and function?
Answer:
Ethanol fermentation, also called alcoholic fermentation, is a biological process which converts sugars such as glucose, fructose, and sucrose into cellular energy, producing ethanol and carbon dioxide as by-products...
Explanation:
Ethanol fermentation, also called alcoholic fermentation, is a biological process which converts sugars such as glucose, fructose, and sucrose into cellular energy, producing ethanol and carbon dioxide as by-products.
what makes a cell responsive to a particular hormone?
The presence of a receptor for that particular hormone
It is more difficult to identify eukaryotic genes than prokaryotic genes because in eukaryotes ________.
What are 2 ways PCR is used in everyday life?
Answer:
including genotyping, cloning, mutation detection, sequencing, microarrays, forensics, and paternity testing. I hope this helps! Explanation:
what are the consequences of either an incomplete or absent ""s"" stage of the cell cycle?
Answer:
If a cell has not properly copied its chromosomes or there is damage to the DNA, the CDK will not activate the S phase cyclin and the cell will not progress to the G2 phase. The cell will remain in S phase until the chromosomes are properly copied, or the cell will undergo programmed cell death.
Explanation:
The consequences of an incomplete/absent "S" stage in a cell cycle are ;
A programmed cell death The cell will not move to the G2 phase of the cell cycleThe absence or incomplete "s" stage of the cell cycle occurs when the a cell does not completely copy its chromosomes or when there is a significant damage to the genetic material ( DNA ) of the cell. when any of these abnormalities occurs the "s" phase stage of the cell cycle will not be activated until the cell chromosomes are correctly copied. Therefore the cell will not move to the G2 phase of the cell cycle
Hence we can conclude that The consequences of an incomplete/absent "S" stage in a cell cycle are ; A programmed cell death and The cell will not move to the G2 phase of the cell cycle
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I need the order please
when do alleles for two different genes—located in two different chromosomes—segregate?
Which of the following statements describes a benefit of most cells being
small?
A. Small cells have a greater surface-to-volume ratio than larger
cells.
B. Small cells move more quickly than larger cells.
C. Small cells have a smaller surface-to-volume ratio than larger
cells.
D. Small cells move more slowly than larger cells.
SUBMIT
Answer:
Small cells have a smaller surface to volume ratio than longer
Birds and insects both have wings, but we do not consider this similarity as evidence of relatedness because ____.
The wings in birds and insects are not considered as evidence of relatedness because they differ in structures even though their functions may be the same.
Organs in different organisms that are different in structures but similar in functions are referred to as analogous organs. Even though analogous organs serve as evidence of organic evolution, they are indications that organisms differ in the paths taken to evolve.
Some other organs may be similar in structures but different in functions. These types of organs are known as homologous organs and are indications that organisms are kind of related in the path taken to evolve.
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4. According to the data in Tables, which planet in the solar system has the greatest
what table?
Explanation:
Which statement about genetic traits is true?
Answer:
d visible traits depend on the dominant and recessive forms of genes from.....
Explanation:
Answer:
I have done these kind of problems before and i think that it might be A or B
Leaves are modified as tendrils for climbing as in
a) Cactus
b) Pea
c)Citrus
d)Bougainvillea
Answer: pea
Explanation:
In the garden pea, it is only the terminal leaflets that are modified to become tendrils. In other plants such as the yellow vetch (Lathyrus aphaca), the whole leaf is modified to become tendrils while the stipules become enlarged and carry out photosynthesis.
Under very high pressure, the volume of a given object will decrease. What effect has the pressure inside Earth likely had on the density of materials in Earth’s core?
The effects the pressure inside Earth likely had on the density of materials in Earth’s core
What is Earth's pressure?It is made up of rock that is molten with slow-moving currents under the effect of increasing pressure and temperatures between 1,600 and 4,000 °F. Volcanic eruptions and earthquakes are caused by movement in the mantle layer.
Similar to how the temperature rises from the surface of the planet toward its center, so do the pressure. It is because of the heavy materials above, such as rocks.
The air density inside the International Space Station is kept at a level that is comparable to that of the surface of the planet. Consequently, the air pressure in the space station is equivalent to.
Therefore, the tremendous pressure inside Earth has the effect of reducing the volume of the materials, increasing their density.
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Answer:The high pressure decreased the volume of the materials, which caused their density to increase.
Explanation:
the movement of potassium into an animal cell requires
Answer:
low cellular concentrations of sodium
What element is essential for microbes and can restrict the growth of pathogens when bound by antimicrobial proteins
Answer: the answer is iron
what does the narroorator beleive has happened to the second black cat when he does not see the animal for several days
Answer:
can't answer that if we don't have context
the apoplast in plant tissues consists of ________.
what type of fossil forms when the impression from the remains of an organism is filled in with soil and hardens into the shape of the original organism?
Answer:
casts
Explanation:
casts are formed by filing the cavity of minerals collected from the surrounding
Answer:
i belive the answer is "casts"
Explanation:
What is photosynthesis?
Answer:
photosynthesis is the process in which plants convert light energy, carbon dioxide, and water to create glucose which it uses to feed itself and oxygen which is expelled into our atmosphere helping us breathe
Explanation:
The fertilization of an oocyte by more than one spermatozoon which results in embryo death is known as
Answer:
Monospermy and Physiological Polyspermy. In general, the entry of more than two spermatozoa into the egg cytoplasm, referred to as polyspermy, causes aberrant effects on meiosis completion or embryo development and hence embryonic death, due mainly to excess male centrosomes delivered into the egg.
Explanation:
The viral envelope closely resembles the ______________________. a. prokaryotic cell wall. b. capsomere c. eukaryotic cytoplasmic membrane. d. eukaryotic cell wall.
The viral envelope closely resembles the eukaryotic cell wall. That is option D.
The virus is a type of microorganism that contains DNA (Deoxyribonucleic acid) and surrounded by a protein coat.
There are different types of viruses which include:
Double stranded DNASingle stranded DNADouble stranded RNASingle stranded RNAThe parts of a virus include:
the protein coat (viral envelope)DNA (Deoxyribonucleic acid)The viral envelope is the external part of the virus, which is made up of proteins and lipids, and is capable of protecting the virus from harm.
Also the cell wall of the eukaryotic cell wall also protects these organisms from external harm.
Therefore, the viral envelope closely resembles the eukaryotic cell wall.
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True or false?
It takes too much time for oxygen to get into cell and carbon dioxide out if cells are too large.
Answer:
false....
Explanation:
hopes this helps
Answer:
false
Explanation:
It doesn't take too much time for oxygen to get into cell and carbon dioxide out if cells are too large.
if the population of insects decreases, which other population will decrease the most?
a. badgers
b. lizards
c. sage brush
d. squirrels
Answer:
lizards is the anwser. lol
What must happen to a chromosome for it to become chromatin?
Answer:
Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5). ... However, when eukaryotic cells are not dividing — a stage called interphase — the chromatin within their chromosomes is less tightly packed.
Explanation:
Which of the following is a natural event that is part of the long-term carbon cycle? (1 point)
A. Earthquakes
B.Tsunamis
C.Blizzards
D. Volcanic eruptions
Answer:
Which of the following is a natural event that is part of the long-term carbon cycle?
A. EarthquakesWhat is the relationship between the light-dependent and light-independent reactions of photosynthesis
Answer:
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
Explanation:
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