Answer:
Abstract
The relative contributions of sexual and asexual reproduction to the genetic structure of populations can be difficult to determine for fungi that use a mixture of both types of propagation. Nuclear RFLPs and DNA fingerprints were used to make indirect and direct measures of departures from random mating in a population of the plant pathogenic fungus Mycosphaerella graminicola during the course of an epidemic cycle. DNA fingerprints resolved 617 different genotypes among 673 isolates sampled from a single field over a 3-month period. Only 7% of the isolates represented asexual clones that were found more than once in the sample. The most common clone was found four times. Genotypic diversity averaged 85% of its maximum possible value during the course of the epidemic. Analyses of multilocus structure showed that allelic distributions among RFLP loci were independent. Pairwise comparisons between individual RFLP loci showed that the majority of alleles at these loci were in gametic equilibrium. Though this fungus has the capacity for a significant level of asexual reproduction, each analysis suggested that M. graminicola populations maintain a genetic structure more consistent with random-mating over the course of an epidemic cycle.
ill give brainiest please help!!!
Answer:
1 goes to c 2 goes to b and 3 goes to a
An electric discharge is the release and transmission of electricity in an applied electric field through a medium such as a gas. ... As the charge on these particles builds up, the result is the often-spectacular discharge of electricity known as lightning
What environment would be least likely to grow bacteria and why? Here are your choices:
1. The armpit of a human
2. A warm freshwater mud puddle
3. A classroom desktop
Answer:
3.
Explanation:
A classroom desktop is the least likely to grow bacteria because it is a relatively clean surface. The armpit of a human and a warm freshwater mud puddle are a more suitable habitat for bacteria because they are warm, and provide a relatively safe environment for them
The study of the environment is called ecology.
The correct answer to the question is C which is a classroom desktop.
What is bacteria?Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometers in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitatsAccording to the question, A classroom desktop is the least likely to grow bacteria because it is a relatively clean surface.
The armpit of a human and a warm freshwater mud puddle is a more suitable habitat for bacteria because they are warm, and provide a relatively safe environment for them
Hence, the correct answer is option 3.
For more information about the bacteria, refer to the link:-
https://brainly.com/question/14688752
(This is a taxonomy worksheet.)
In the introduction, the term "evolutionary innovation" was used. What does this mean?
Glucose consists of carbon, oxygen and hydrogen atoms. What happens to these atoms
during glycolysis?
a) Nothing, glycolysis does not affect the glucose molecule
b) The atoms are converted into other molecules in a series of chemical reactions
c) The atoms are transformed into energy
d) All atoms are transformed into other atoms in a series of chemical reactions
Answer:
b.
Explanation:
the atoms are converted into other molecules (pyruvate) in a series of chemical reactions
Glucose consists of carbon, oxygen and hydrogen atoms. The thing that happens to these atoms during glycolysi is that The atoms are transformed into energy
Glucose is a type of simple sugar that has six carbon atoms and during glycolysis, is broken down easily because it is a monosaccharide
Glycolysis is the process of breaking down and converting glucose into CH₃COCOOH.
Therefore, what happens to carbon, oxygen and hydrogen atoms during glycolysis is that they are transformed to energy
Read more here:
https://brainly.com/question/20568889
Hello, if anyone sees this, can you answer this question for me?
Each cell, expresses, or turns on, only a fraction of it's genes. The rest of the genes are repressed, or turned off. The process of turning genes on and off is known as, Gene Regulation. Gene regulation can occur at any point during gene expression, but most commonly occurs at the level of _____, when the information in a gene's DNA is transferred to RNA.
(A) Post Transcription
(B) Post Translation
(C) Transcription
(D) Translation
Answer:
C-transcription
Explanation:
What type of organism uses energy to make its own food?
Answer:
Producers such as acacia trees and plants!
Answer:
autotroph
Explanation:
i learned this last year!
autotroph is a organism that can produce its own food using light, water, carbon dioxide, or other chemicals.Why? well because autotrophs produce their own food, they are sometimes called producers.but there are different kinds of autotrophic organisms.
hope this was helpful! ^^
PLEASE HELP I NEED TO GET THIS QUESTION RIGHT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A flask filled with water and organic molecules was left open to the air for an hour and then was tightly stoppered. After being allowed to sit for a week, the flask was reopened and checked for living organisms. Only anaerobic bacteria were found living in it. Which of the following can be assumed about the conditions within the flask during the week it sat tightly stoppered? (4 points)
Group of answer choices
There were carbon-based gases in the water.
There was abundant oxygen in the flask.
There was no oxygen in the flask.
Sunlight must have entered the water.
Answer:
There was no oxygen in the flask.
Explanation:
Anaerobic organism do not need oxygen!!
Which object made up of one or more smaller unit objects would make the best model for a group of cells from a plant?
Answer:
D. Dresser
Explanation:
According to the unified cell theory "all living organism are made of one or more small cells" and new cells arise from one cell through cell division.
From the given examples, the best model for a group of cells from a plant is "dresser" because a cell is consist of small structures called organelles that perform specialized functions likewise a dresser can contain several objects that can act as organelles.
Hence, the correct answer is "D. Dresser".
its D
i took quiz lol
Which of the following substances is not a fossil fuel?
a.
coal
c.
gas
b.
oil
d.
wood
Answer:
D, wood.
Explanation:
Wood is not a fossil fuel.
Hope this helps!
Name the ionic compound of Cu2(SO4)3?
Answer:
cuprous sulfate
Explanation:
Copper(I) sulfate, also known as cuprous sulfate and dicopper sulfate, is the chemical compound with the chemical formula Cu2SO4 and a molar mass of 223.15 g mol−1. It is an unstable compound as copper(I) compounds are generally unstable and are more commonly found in the CuSO4 state.
Hope this helped :)
The name of the given compound Cu₂(SO₄)₃ is copper (I) sulfate.
To name the given compound, first determine the oxidation number of copper in the compound as shown below;
[tex]Cu^{2+} \ + \ (SO_4)^{2-}[/tex]
2x = 2
x = +1
The compound can now be named starting with copper followed by its oxidation number, the lastly is the radical. The radical is sulfate.
Thus, the name of the given compound Cu₂(SO₄)₃ is copper (I) sulfate.
Learn more here:https://brainly.com/question/3390602
how can scientists use fossil records from locations around the world to determine geologic timescale
Answer:
I dont know this i will next year im just in 8th grade
Explanation:
Cross two heterozygous black mice and tell the possible phenotypes and
genotypes in their offspring.
Answer:
Phenotype: 3 black mice: 1 brown mice
Genotype: 1 BB: 2Bb: 1bb
Explanation:
This question involves a single gene coding for fur color in mice. The allele for black color (B) is dominant over the allele for brown mice (b). This means that a mouse that is heterozygous will be black.
If two heterozygous black parents are crossed i.e Bb × Bb, the gametes produced by each parent are: B and b. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:
BB, Bb, Bb, and bb
- The phenotypes of this cross is 3 black mice: 1 brown mice
- The genotypes of the cross is 1 BB: 2Bb: 1bb
Replicate the following DNA sequence: CCC
Answer:
GGG
Explanation:
use AT GC
opposite of C is G and since there's 3 c's you replicate and get 3 g's
Why scientific naming is necessary?
Answer:
The correct answer would be - to communicate unambiguously globally.
Explanation:
In different locations on the earth or countries, there are thousands of languages present, and each language has a name for the different species or different organisms that leads to confusion and tough to take the record.
Therefore, there is a two-part scientific name system proposed for every species first name for the genus and second part for the species, it is called "binomial nomenclature." It helps and allows to communicate unambiguously about the species of different organisms globally.
Which sediment would have the slowest rate of deposition?
a round sediment
O a very large sediment
an irregularly shaped sediment
O a high-density sediment
Answer:
C. An irregularly shaped sediment
Explanation:
Deposition is the settling of sediments within respective basins of deposition.
Irregularly shaped sediments are the slowest to settle within a basin this is due to the frictional resistance of their surface.
As these particles hits the water, the liquid drag on their edges is very great and prevents swift settling.
A. A high density sediment and a large sediment will have a fast settling time.
B. Rounded sediments will impose no friction on the water and they fall through the liquid very fast.
Answer:
the answer is C. an irregulary shaped sediment
Explanation:
hope this helps!
Why is most of the carbon dioxide produced by green plants not excreted as metabolic waste (given off because it is not needed)?
Answer
I think during the day the sun helps the plants grow with sun light but at night there is no sun help them grow so it takes the plants longer to grow this is what I think! sorry if it is wrong!
biogeography evidence for evolution definition
use your own words
How will the spectra lines recorded on Earth be shifted for a light- emitting object that is moving neither toward nor away from Earth? Choose the correct answer.
They will have redshift.
They will have blueshift .
They will have greenshift.
O They will not be shifted at all.
Answer:
Tendrán corrimiento al rojo.
Explanation:e sa e s
2. There are many different types of cancer.
Which of the following is one thing they all have in common?
a. They are all caused by uncontrolled cell death.
b. They all start in the lungs and migrate to different parts of the body.
c. They are all caused by uncontrolled cell growth.
d. All of the above
e. None of the above
Answer:
i think its a im not sure though
PLEASE HELP I AM ON A TIMERR
Answer:
a
Explanation:
you need sugar,glucose and oxygen
HELPPPP pls I need answer fast like flash
Answer:
and im here hi
Explanation:
was i fast enough?
HELP PLS!!!!!!
Polygenic traits are when one phenotype (trait) is controlled by several different genes. The provided example shows human skin color being controlled by 3 different genes. Describe one other trait (don't use skin color!) in any animal that you think could be a Polygenic trait, and explain why you think that it is (HINT: I did mention an example in class yesterday... lets SEE if you remember!).
I need help ................
Answer:
thats easy bro ;0
Explanation:
19. Why is Tiktaalik such an important transitional fossil?
Answer:
Its mix of characteristics of fish and of tetrapods suggest that it represents one of the moments in the transition between fish and tetrapods. them have found fossils.
Explanation:
Why are barriers sometimes placed on trade?
Answer:
Both tariffs and subsidies raise the price of foreign goods relative to domestic goods, which reduces imports. Barriers to trade are often called “protection” because their stated purpose is to shield or advance particular industries or segments of an economy.
Explanation:
What is the hormone that triggers the protection of sperm?
Answer:
FSH - Follicle Stimulating Hormone
Explanation:
Follicle Stimulating Hormone is another hormone that is responsible for sperm production.
The __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ carries low oxygen blood to the lungs and brings high oxygen blood back to the heart.
Answer:
Pulmonary blood vessel
Explanation:
The pulmonary blood vessel carries low oxygen blood to the lungs and brings high oxygen blood back to the heart.
More specifically, the pulmonary artery carries low-oxygen blood to the lung from the right ventricle of the heart. The blood becomes oxygenated in the lung and the oxygen-rich blood is taken back to the left atrium of the heart by the pulmonary vein.
Chloroplasts and Mitochondria are two organelles that are largely
responsible for the cycling of carbon through the ecosystems. What are
their functions?
PLEASE HELP BEING TIMED Which is one piece of information that fossils in samples from Earth's crust reveal about Earth's history?
A. Changes in climate
B. Number if species at the specific time
C. Composition of Earth's core
D. Age of organisms when they died
Answer: changes in climate
Change in climate information that fossils in samples from Earth's crust reveal about Earth's history. So, the correct option is (A).
What are Fossils?A fossil is defined as the preserved remains, impression, or trace of a once-living thing from a past geological age, including bones, shells, exoskeletons, fossilized traces of animals or microbes, amber, hair, petrified wood, and DNA. The totality of fossils is known as the fossil record.
There are five types of fossils which are as follows:
Body FossilsMolecular FossilsTrace FossilsCarbon FossilsPseudo fossilsThe fossil record shows that the types of living things on Earth changed over time which reveals the Earth's history.
Thus, change in climate information that fossils in samples from Earth's crust reveal about Earth's history. So, the correct option is (A).
Learn more about Fossils, here:
https://brainly.com/question/14988327
#SPJ6
SARS-CoV-2 is a respiratory virus. What makes a respiratory virus more difficult to contain than a pathogen that is spread through contaminated food, for example?
Answer:
a respiratory virus is usually air borne. while contaminated food can only harm you if ingested. with SARS, if you breath in contaminated air, its a lot easier to get it.
Explanation: