Answer:
1:2:1
Explanation:
To get the phenotypic ratios, first you must figure out the genotype results of the cross. If the two cattle both have RW, then you get 25% RR, 50% RW, and 25% WW.
This means you have 1 fully red cattle, 2 roan cattle, and 1 fully white cattle, or just simplified as 1 (red) : 2 (roan) : 1 white.
The ratio of red to white is 1:1, and the ratio of roan to non-roan is 2:1, which gives the phenotypic ratio of 1:2:1 for red:roan:white.
What is co-dominance ?Codominance is a type of genetic inheritance in which both alleles of a gene are expressed equally in the phenotype of a heterozygous individual. This means that neither allele is dominant or recessive, and both contribute to the observable traits of the organism
When two roan cattle (Rr x Rr) are crossed, the possible genotypes of their offspring are RR, Rr, and rr. The phenotypic ratios of the offspring will be:
25% red (RR)
50% roan (Rr)
25% white (rr)
This is because both red and white alleles are codominant, meaning they are expressed equally in the heterozygous state (Rr) and produce the roan phenotype. The ratio of red to white is 1:1, and the ratio of roan to non-roan is 2:1, which gives the phenotypic ratio of 1:2:1 for red:roan:white.
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Meiosis Questions:
1. How many chromatids are present in one homologous pair of chromosomes?
2. What is meant by “crossing-over” in meiosis, and how did your model depict this?
3. What effect does crossing-over during meiosis have on the genetic makeup of daughter cells?
4. Why must the number of chromosomes in reproductive cells (gametes) be different than the number of chromosomes in the rest of an organism’s cells (somatic cells)?
Explanation:
Two sister ChromatidsCrossing over is the exchange of genetic material between two homologous chromosomes to give rise to recombinant chromosomesallows the daughter cells of meiosis to be genetically unique from one another. because the DNA of the parent cell is shuffled before the cell divides.The left coronary artery typically branches into the __________ interventricular artery and the __________ artery.
The left coronary artery typically branches into the anterior interventricular artery and the circumflex artery.
What is the circumflex artery?The circumflex artery is an artery that branches from the left coronary artery, which is one of the most important arteries in the body.
The circumflex artery is well known to envelop and surround all the heart muscle (cardiac muscle).
The circumflex artery is a fundamental blood vessel in the heart and its damage may have serious health problems.
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High-quality __________ proteins are those that provide all the essential amino acids.
A protein that contains all essential amino acids is called a hydrated/complete protein.
What type of protein contains all the essential amino acids?Complete proteins, Food that have all nine vital amino acids are called complete proteins.
These foods include beef, poultry, fish, eggs, dairy, soy, quinoa and buckwheat. Foods that control some but not all the vital amino acids are called vague proteins.
Thus, A protein that contains all essential amino acids is called a hydrated/complete protein.
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How do we represent dominant and recessive alleles?.
How does the nucleus work with the ribosomes to maintain the structure and function of a cell?
Answer:
The nucleolus within the nucleus produces ribosome subunits, which are assembled outside the nucleus into ribosomes. The nucleus then sends mRNA to the ribosomes, which is used to code for protein synthesis.
explain how weather,climate,and seasons could affect the biotic and abiotic factors of an ecosystem
Weather, climate and seasons are factors that limit the distribution of different species of living beings in ecosystems, influencing survival and reproduction.
What are the biotic and abiotic factors of an ecosystem?Biotic factors are each of the living organisms of an ecosystem and abiotic factors are all non-living ones such as organic and inorganic substances in the system as well as environmental conditions.
Weather, climate, and seasons could affect these factors in altering the distribution of species, but would also decrease primary production, which would affect survival and growth.
Therefore, we can conclude that the weather, climate and seasons are factors that limit the distribution of different species of living beings in ecosystems, influencing survival and reproduction.
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Drag the tiles to the correct boxes to complete the pairs.
Match the discovery to its significance.
accelerated expansion of the universe
Sagittarius A*
cosmic microwave background
Voyager 1
the first observed supermassive black hole in the Milky
Way
the first spacecraft to enter interstellar space
understanding the ultimate fate of the universe
observational confirmation of the Big Bang theory
Answer:
1. The first observed supermassive black hole in the milky way → Sagittarius A*.
2. The first spacecraft to enter interstellar space → Voyager 1.
3. Understanding the ultimate fate of the universe → Accelerated expansion of the universe.
4. Observational confirmation of the Big Bang theory → Cosmic microwave background.
Explanation:
Hope this helps :)
Answer:
See image
Explanation:
Plato/Edmentum
The San Andreas fault is:
located in California
at the boundary of two plates
the location of many earthquakes
all of the above
What is the difference between a scientific theories and a scientific laws?
A theories
Blaws
Cevidence
DAll of the above
In a mammalian visual system, visual information is integrated at ________.
Answer:
In a mammalian visual system, visual information is integrated at the lens
Explanation:
describe one financial challenge that young entrepreneurs may initially encounter that indicate how they could deal with this challenge
Which of the following describes an outcome of water scarcity in a community?
A. Emigration of people into the area
B. Increased housing and construction
C. Increased poverty and disparity
D. More imports and exports
Answer:
C. Increased poverty and disparity
Explanation for the other answers being Incorrect:
A. More people are not going to move into an area with a shortage of water.
B. Water scarcity would most likely not have a direct correlation to the construction output. However, if it did, it would most likely make the construction and new housing rate decrease
D. Not having water can make people move away and leave the area, meaning that imports and exports which require workers would not see an increase of imports and exports
100 points! PLEASE HELP! Answer all questions
Lab: Natural Selection
Edge 2022
---------------------------------------------
Section I: Experimental Overview:
1. What is the purpose of the lab?
2. What is your hypothesis for this experiment?
3. What methods are you using to test this hypothesis?
Outline the steps of the procedure in full sentences.
Section II: Data and Analysis
4. What graphs would clearly represent the trends in your data?
Your Student Guide includes information on which graphs to construct. Each graph should have the following items:
a. An appropriate title
b. Appropriate labels for each axis
c. An appropriate scale for each axis
d. The correct units for the data
Complete a rough sketch of each graph.
5. What do the data in your graphs tell you?
Explain in one or two sentences what trend is shown in each of your graphs.
Section III: Conclusions
6. What do the data tell you about your hypothesis?
State how your hypothesis is either supported OR refuted by the data.
7. How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that support your argument.
8. If you could repeat the experiment and make it better, what would you do differently and why?
There are always ways that experiments can be improved. Now that you are a veteran of this experiment and have experience with the procedure, offer some advice to the next scientist about what you suggest and why.
Answer: I can only help you with one
4. D because you need data fro what ever your doing.
thats as much as i can help vote me the brainleirst
60 points
Which of the gollowing is indicated by the arrow in the image
Part C
When only one color of light reflects from a piece of paper, what happens to the other colors of light? Remember that
light is energy, and energy cannot be created or destroyed.
Answer:
they are absorbed
Explanation:
when one color is reflected on something, the rest of the colors are absorbed by it.
What happens in a plant after the pollen reaches the pistil?
A
A bird eats the pollen.
B
A new plant sprouts in the flower.
C
A seed grows.
D
A bee picks up the pollen.
Relative dating of rock layers tells us that the deeper we dig,
the younger the rocks get
the smellier the rocks get
the harder the rocks get
the older the rocks get
Answer:
the younger rock is on the top because that is where the newer rocks form the older rock is on the bottom
Explanation:
(04.03 MC) Which description properly describes a step involved in cellular respiration?
A. Glucose is created, then the energy gained is transferred to the energy molecule.
B. Carbon dioxide and water are released after the energy molecule is charged.
C. Water is divided into carbon dioxide and glucose.
D. Oxygen is combined with ATP to energize it.
Answer:
B
Explanation:
Which variety of mouse is more likely to survive in a dry desert? (1 point)
O a mouse that has a shorter tail
O a mouse that has a longer tail
O a mouse that needs more water
a mouse that needs less water
Answer:
The fourth option
Explanation:
A mouse that needs less water, as the desert is an arid climate
During the 1918 influenza pandemic, doctors initially treated infected patients with an antibiotic. Why was this treatment ineffective?
If catfish eat algae, and there's 20,000 kcal/m2 of energy stored as biomass in algae in a pond, how much energy stored as biomass in catfish in that pond would you expect there to be?
There will be 2,000 kcal/m² of energy stored as biomass in catfish in the pond.
What is Biomass?This is defined as the position of an organism in the food chain and 10 percent of energy stored as biomass in a trophic level is passed from one level to the next.
This is why the 10 percent of 20,000 kcal/m² which is 2,000 kcal/m² will be most likely present in the next level.
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which of the following is true of clouds at medium altitude
Options not given but
Clouds at medium altitudes are made of ice crystals.
As the mid-level clouds form ice crystals when the temperature is cold.
hope it helps
Answer: they cause light rain and snow
Explanation:
In photosynthesis, plants use chlorophyll to produce.
Answer:
carbohydrate also glucose known as the food for the plant and oxygen
Lyme disease is an example of a(n) ______ infectious disease, because it is only seen in areas of the US where the tick vector for the pathogen is found.
Lyme disease is an examples of vector borne infectious disease.
What is Lyme disease?Lyme disease is also called Lyme borreliosis, is an example of a vector-borne disease whose causative agent is Borrelia bacterium and it is transmitted by tick in the genus Ixodes. The common sympyoms of the infection is red rash, known as erythema migrans, which appears at the site of the tick bite.
Therefore, Lyme disease is an examples of vector borne infectious disease.
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Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.
What is an endemic infectious disease?It refers to the constant presence and/or habitual prevalence of a disease or an infectious agent in a population of a geographic area.
Lyme disease is a borreliosis transmitted by ticks of the genus Ixodes that seems to be limited to certain geographic areas of the US, therefore it is considered endemic.
Therefore, we can conclude that Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.
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Hemoglobin is crucial for oxygen transport in the blood because oxygen has a _______ solubility coefficient in water.
Answer: Hemoglobin is crucial for oxygen transport in the blood because oxygen has a low solubility coefficient in water. :)
What nonrespiratory air movement is due to a spastic contraction of the diaphragm while the glottis is closed
Answer:
Hiccup is what a nonrespiratory air movement is due to a spastic contratction.
If any Kardashian sister expresses an unknown X-linked recessive trait, what is the probability that her son would also express the same trait
Based on your knowledge of energy flow and light absorption, which color(s) of light will not provide energy for photosynthesis? (select all that apply) question 3 options: red orange green blue violet
Answer:
Red light has the longest wavelength and the least energy, while violet light has the shortest wavelength and the most energy.
Explanation:
Yw
Answer:
RED and BLUE
Explanation:
Special pigments in chloroplasts of plant cells absorb the energy of certain wavelengths of light, causing a molecular chain reaction known as the light-dependent reactions of photosynthesis. The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).
Which biological process has genetic variation as a natural advantage?
budding
as_xual reproduction
s_xual reproduction
binary fission
Answer:
S**ual reproduction
Explanation:
mixing of DNA from two different germ cells
Sleep could be best described as a __________. a. car with the engine started, but parked and idling b. truck driving on the freeway in the right lane c. train with cargo being loaded at the start of a trip d. bicycle riding uphill in the wind please select the best answer from the choices provided a b c d
Answer:
The best answer is A) A car with the engine started, but parked and idling.
Explanation:
This mean are body still breathing and pumping blood but were not aware and cant move.
-Hope This Helps!
-Justin:)
According to the question, The best answer is A car with the engine started, but parked and idling.
During which stage of sleep does a body temperature begin to fall?Stage 2, you are in light sleep. Your heart rate slows and your body temperature drops. Your body is getting ready for deep sleep. This can last for 10-25 minutes.
Thus, the car with the engine started, but parked and idling is correct.
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