Answer:
The group needs to find signs of apical dominance, growth in response to light, vascular tissue differentiation, formation of lateral and adventitious roots, etc.
Explanation:
Lanolin is a solvent used to study physiological processes in plants by diluting hormone growth regulators (in this case, indole acetic acid). Indole acetic acid (IAA) is the most important auxin hormone in plants. Auxins are essential plant hormones synthesized in expanding shoot tips that move down the stem to the roots. These hormones coordinate cell division, elongation and identity during plant body development. IAA hormone is well known to regulate different plant developmental processes including, among others, apical dominance (where the central stem grows more strongly than other lateral stems), tissue differentiation, stem elongation, phototropism (growth in response to light) and gravitropism (response to gravity). For instance, under the application of IAA, it is expected that bean stems grow to imitate the response to light (phototropism) by bending away from the side where lanolin was applied.
Does mutation decrease or increase genetic variation
Answer:
Mutations are changes to an organism's DNA and are an important driver of diversity in populations. Species evolve because of the accumulation of mutations that occur over time. ... This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation
What is the answer please help no links I will report you if you put a link
4. In some varieties of camelia, flower color is controlled by codominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as red and white.
D. What is the phenotype of a plant with the genotype RR?
E. What is the phenotype of a plant with the genotype WW?
F. What is the phenotype of a plant with the genotype RW?
Answer:
D. Red
E. White
F. Red and white
Explanation:
Co-dominance is a type of non-mendelian inheritance in which the two alleles of a gene are both dominant. Hence, they are both simultaneously expressed in the organisms phenotype.
According to this question, the two alleles (red (R) and white (W)) of a color gene in some varieties of Camelia are codominant. This means that both alleles will be expressed simultaneously in organisms that contain them.
- phenotype of a plant with the genotype RR is RED because only "R" alleles are present.
- phenotype of a plant with the genotype WW is WHITE because only "W" alleles are present.
- phenotype of a plant with the genotype RW will be BOTH RED AND WHITE, because they both phenotypically express themselves.
Trace minerals are needed in much smaller amounts than major minerals, but they are just as essential for good health.
a. True
b. False
Answer:
The correct answer is - true.
Explanation:
Like macromolecules and vitamins, minerals are also essential for a healthy body. The essential minerals can be divided on the basis of their requirement into major minerals and trace minerals.
The trace elements and the major elements both are equally important. It does not matter if a high amount of major elements are required and a small amount of trace elements required. The amount is not an indication of the importance of the element.
How many chromosomes are made by using a cell "c"
Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
Explanation:
Floods, droughts, fires, and earthquakes are examples of
Answer:
Floods, hurricanes, tsunamis, earthquakes, volcanic eruptions, forest fires, famine, and droughts are examples of natural disasters, which have adverse effects on countries. In my opinion, I like to see the term “natural disaster” as a word human beings use to blame nature for their lack of environmental sustenance.
I answered the same question before So I went to the answer and copied it.
What happens generally to the temperature and precipitation as latitude increases?
A. The temperature increases, and the chance of precipitation increases.
B. The temperature decreases, and the chance of precipitation decreases.
C. The temperature decreases, and the chance of precipitation increases.
D. The temperature increases, and the chance of precipitation decreases.
am giving brainlyest:)
Which of the following is a specialist species?
a. Giant Pandas
b. Horses
C. Humans
d. Rabbits
Answer:
A. Gaint Pandas
Explanation:
Answer:
Giant Panda
Explanation:
how does the appearance of the chromosomes change as you move through through the list?
Answer: The appearance of the chromosomes change in shape/size and some are paired while others are single through the list. brainliest?
Explanation:
What does the term "K" represent in the logistic growth model?
The death rate for the population
The growth rate for the population
The carrying capacity for the population
The amount of potassium in the population
Answer:
the carrying capacity for the population.
Arrange the following items in the CORRECT ORDER for PS II
The electrons from chlorophyll travel down the electron transfer chain bringing in hydrogen ions.
Chlorophyll A's electron is ejected to the primary electron acceptor.
Chlorophyll A captures the energy from a photon of light from the sun.
Excess hydrogen ions leave through the ATP synthase making ATP
Photolysis frees oxygen molecules, hydrogen ions, and replaces chlorophyll A's lost electrons from water molecules
Answer:
1. Chlorophyll A captures the energy from a photon of light from the sun.
2. Chlorophyll A's electron is ejected to the primary electron acceptor.
3. The electrons from chlorophyll travel down the electron transfer chain bringing in hydrogen ions.
4. Excess hydrogen ions leave through the ATP synthase making ATP
5. Photolysis frees oxygen molecules, hydrogen ions, and replaces chlorophyll A's lost electrons from water molecules
Explanation: Hopefully this helps ;)
4. In some varieties of camelia, flower color is controlled by codominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as red and white.
D. What is the phenotype of a plant with the genotype RR?
E. What is the phenotype of a plant with the genotype WW?
F. What is the phenotype of a plant with the genotype RW?
Which is not something that scientists help doctors do?
diagnose disease
treat disease
cause disease
prevent disease
the number of molecules of ATP produced from one molecule of glucose through glycolysis/oxidative phosphorylation is respectively
Answer:
Glycolysis is the answer
Answer:
Explanation:
Glycolysis starts with one molecule of glucose and ends with two pyruvate which is pyruvic acid. molecules and a total of four ATP molecules, and two molecules of NADH.
i need help with this have to have it turned in by 3
the lungs and respiratory system work closely with the __ system to make sure oxygen reaches all the cells of our body
Answer:
circulatory system
Explanation:
Why are cancers named differently based on where they originate from in the body?
Answer:
When cancer spreads, it keeps this same name. For example, if kidney cancer spreads to the lungs, it is still kidney cancer, not lung cancer. Lung cancer would be an example of a secondary tumor.
Explanation:
Explain why mining has such a large impact on the environment.
Answer:
Mining has a large impact on the environment because minerals are contained within the Earth. Earth must be removed in order to extract the minerals. When the minerals are close to the surface, the earth is removed, causing destruction to the shape of the land and the flora and fauna living in that area.
Answer: I agree with the above answer
You are given a constitutive mutant, but you are not told whether it is constitutive due to a repressor mutation (i-) or an operator mutation (oc). Determine what could be added to the system that would allow you to determine the difference between the two mutants. You will add the same thing to each and indicate the results of the experiment.
Answer:
Explanation:
Repressor molecules, as we recognize them to be proteins occur as transcription factors that may function on their binding sites within the same genome or even on a different genome.
As a result, repressor molecules behave in a trans-active manner. Operator, on the other hand, acts as a binding site mostly on the chromosome genome which can only trigger downstream genes. As a result, Operators are cis-acting.
In this scenario, if we give the system a Plasmid containing a wild-type repressor gene, the repressor molecules would only attach to the usual Operator sites.
In the 1st scenario:
The Operator is regular and normal, but I- is mutated. As a consequence, the additional extra plasmid's normal repressor molecules will stick to the operator site, causing suppression or repressed expression.
In the 2nd scenario: genome
The repressor is natural, but Oc is mutated. As a consequence, the additional extra plasmid's normal repressor molecules would not adhere to the operator region, resulting in the same Constitutive expression.
28. Which of the following statements about hormones is incorrect? a) Glands that produce them are ductless glands. b) They are produced only by organs called endocrine organs. c) Some are water soluble and some are not. d) They often maintain steady-state conditions. e) They may turn genes off or on
Answer:
b) They are produced only by organs called endocrine organs.
Explanation:
Hypothalamus can be defined as a small portion of the mammalian brain responsible for the secretion of hormones through the stimulation of the pituitary gland.
It is located between the midbrain and the thalamus. Also, hypothalamus is the most inferior portion in the diencephalon of the forebrain.
Basically, hypothalamus is the most important portion of the brain in vertebrates that controls various bodily functions.
An endocrine system refers to a series of ductless glands and organs responsible for the production and secretion of hormones that are used by the body for the performance of various functions such as metabolism, controlling growth, reproduction, mood, sleep, etc. These hormones are secreted directly into the circulatory system (blood) and then transported to the organs and tissues in the body.
The following statements about hormones are correct;
I. Glands saddled with the responsibility of producing hormones are ductless glands i.e directly secreting hormones into the bloodstream.
II. Hormones are either soluble in water or insoluble in water.
III. Hormones are often responsible for maintaining steady-state conditions in the body of a living organism through homeostasis.
IV. Hormones are typically able to turn genes off or on.
The determination of the age of a rock based on the surrounding evidence is called approximate dating, law of superposition, relative dating, or absolute dating.
Answer:
I believe the answer is relative dating. I hope this helps.
what is dynamic equilibrium
Answer:
a state of balance between continuing processes.
Explanation:
Which flock will be able to eat the most? The least? Why?
Answer: The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation. brainliest?
Explanation:
Answer:
The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation.
Question 4 of 5
Where is Macbeth going when he sees the bloody dagger?
O A. To see his wife
O B. To talk with Banquo
C. To drug the guards
D. To kill the king
SAMIT
It’s A
Answer:
A or B
Explanation:
I thenk it's A
What is the most abundant plant hormone and where is it found in the plant?
Answer:
Indole-3 acetic acid
Explanation:
IAA causes cell wall extension by activating the proton pump, which keeps the cell wall acidic at a pH of around 4. The cell wall pressure is reduced in these conditions, and water enters the cell, resulting in an increase in cell volume. As the cell grows in size, new cell wall material is required to keep the wall stable. Auxin IAA is a naturally occurring substance. It also promotes cell enlargements, cell division in the vascular cambium, root initiation enlargement, cell division in VA.
IAA can be found in the seeds of many plants, especially legumes like peas and broad beans.
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Which of these oceans remain frozen accept for part of the year, when the edges
melt? (Choose all correct answers)
Arctic
Indian
Pacific
Southern
Atlantic
(please no links thank you)
Answer:
Arctic
Explanation:
Answer: Atlantic/Arcic
Explanation:
why are oranges green when they are growing in tropical climates
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Oranges (Citrus sinensis) growing in tropical countries have green skins and orange flesh. ... This is because the green pigment chlorophyll is removed from the fruit, similar to what happens when the leaves of deciduous trees turn brown in the autumn.
Hope it helps!
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Why does the Piney Woods Ecoregion have less soil erosion?
Someone’s please help me I will mark you BRAINLIST I need help with all 4 questions please
Answer: 1. On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive. On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive. 2. The lysogenic cycle is a method by which a virus can replicate its DNA using a host cell. A bacteriophage, or bacteria virus, injects its DNA into the bacteria. ... The DNA is then replicated when the bacteria undergo cell division. 3. A lysogenic virus can remain inactive for a period of time. In lysogenic infection, viral DNA gets integrated with the host cell's DNA, where it is copied along with the host cell's DNA when the host cell replicates. ... It then removes itself from the host cell's DNA and enters the lytic cycle. The lytic cycle: The phage infects a bacterium, hijacks the bacterium to make lots of phages, and then kills the cell by making it explode (lyse). 4. So were they ever alive? Most biologists say no. Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms. brainliest?
Explanation:
