Answer:
The correct answer would be - 1 out of 4 or 25% offspring would be expected to have yellow flowers
Explanation:
Red flowers are dominant over the yellow flower, initially, a cross was made between true-breeding red and true-breeding of yellow flowers
Red flower plant gametes, a and a and red plants gamete would be A and A.
so,
A A
a Aa Aa
a Aa Aa
in this cross, all the offspring are red as they have a heterozygous genotype. Now self-pollinating these F1 generation offsprings, gametes would be A and a for both parents:
A a
A AA Aa
a Aa aa
in the f2 generation, there is only 25% of offsprings are yellow flowers.
It is one of the most important step in conducting a survey by knowing the environmental concerns such as potential noise, air and water pollution.
a. know your area
b. know the local trees
c. know your market
d. know the people in the community
Holstein cattle are normally black and white. A su- perb black and white bull, Charlie, was purchased by a farmer for $100,000. All the progeny sired by Charlie were normal in appearance. However, cer- tain pairs of his progeny, when interbred, produced red and white progeny at a frequency of about 25 percent. Charlie was soon removed from the stud lists of the Holstein breeders. Use symbols to ex- plain precisely why.
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached file
Which of the following country has the highest land area per person need to support their lifestyle
Answer:
USA
Explanation:
20. Edward Lambert, an Englishman, was born in 1717. Lambert had a skin disorder characterized by very thick skin that was shed periodically. The hairs on his skin were very coarse, like quills, giving him the name "porcupine man." Lambert had six sons, all of whom exhibited the same traits. The trait never appeared in his daughters. In fact, the trait has never been recorded in females. Provide an explanation for the inheritance of the "porcupine trait
Answer:
The trait is Y-linked
Explanation:
The only plausible explanation behind the inheritance pattern shown by the porcupine trait is that it is Y-linked.
Y-linked traits are limited to the Y chromosome only, a sex chromosome that is peculiar to only the male gender. Chromosomally, females are XX while males are XY. Hence, only the male gender has the genetic capacity to inherit the porcupine trait. This is why only the sons of Edward Lambert, and never the daughters, exhibited the trait.
molecular similarities
what advantage do multicellular organisms have over unicellular organisms?
Answer:
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism and it has a large surface area to volume ratio while multicellular organisms use many different cells to function to help it transport enough molecules across it membrane.It has a small surface area to volume ratio!
55.7 moles of PCl5 will decompose to produce how many moles of PCl3 and Cl2 combined ?Enter your answer correct to 1 decimal place
Answer:
55.7 moles of PCl₃ and 55.7 moles of Cl₂
Explanation:
The balanced chemical equation for the reaction in which phosphorus pentachloride (PCl₅) is decomposed in phosphorus trichloride gas (PCl₃) and chloride gas (Cl₂) is the following:
PCl₅(g) → PCl₃(g) + Cl₂(g)
According to the stoichiometric coefficients, 1 mol of PCl₅ produces 1 mol of PCl₃ and 1 mol of Cl₂. So, the stoichiometric ratios reactant/product are: 1 mol PCl₃/1 mol PCl₅ and 1 mol Cl₂/1 mol PCl₅. Thus, we multiply the stoichiometric ratios by the number of moles of reactant:
1 mol PCl₃/1 mol PCl₅ x 55.7 mol PCl₅ = 55.7 mol PCl₃
1 mol Cl₂/1 mol PCl₅ x 55.7 mol PCl₅ = 55.7 mol Cl₂
Therefore, 55.7 moles of PCl₃ and 55.7 moles of Cl₂ are obtained from the decomposition of 55.7 moles of PCl₅.
how are blood stem cells targeted?
Answer:
replacing defective blood-making cells
Explanation:
You are monitoring Birch Lake,
A. Snails and crayfish would not survive in Birch Lake at a pH of 6.2.
B. Once they die out, the walleye will disappear as well.
What occurs in the small intestine?
A. churning
B. nutrients are absorbed
C. water is absorbed
D. breaks down food using gastric
juices
Answer:
B
Explanation:
the small intestine absorbs all the nutrients you get from your food into the bloodstream
Answer:
b
Explanation:
in the small intestine, it absorbs the nutrients and those nutrients go into the bloodstream. sorry if this explanation sucked.
Determine the proportion of offspring phenotypes that would result when two merle dogs mate, if one dog is true-breeding for the long-coat trait and the other dog is true-breeding for the short-coat trait. ResetHelp
Answer:
100% long-coat
Explanation:
Assuming that the long-coat trait is represented by L allele and the short-coat trait by l allele.
True-breeding long-coat dog would have the genotype LL while true-breeding short-coat would have the genotype ll.
Assuming that the long-coat trait is dominant over the short-coat trait.
LL x ll
Ll Ll Ll Ll
All the offspring would have Ll genotype and would appear with long-coat phenotypically. Hence, the proportion of offspring phenotypes is 100% long coat.
Can someone please help me with this I don’t know how to label them I really need help i need to turn it in please
Which molecule is used to cut out a section of DNA? A. Restriction endonuclease. B. Reverse transcriptase C. Gel electrophoresis D. DNA polymerase
Dr. Digger, a paleontologist, finds a fossil that he describes in his journal.
The creature was approximately 1 meter long, with its backbone fused into a large shell covering the body cavity. It had a beaklike mouth, without teeth, and all four limbs were in the form of flippers.
Based on anatomical similarities, to which modern animal is Dr. Digger’s creature most closely related?
zebra
bony fish
sea turtle
snake
Answer:
sea turtle
Explanation:
it is conected to a shell and has flippers
Scientists are studying a layer of sedimentary rock and discover what appears to be ripples made by runding water preserved in the rock. When comparing those ripples to some made in mud at a present day location, they notice that the effects are identical. Based on the observations, which of the following is most likely to be true? OA. OB. The mud at the present day location is actually from the same time period as the rock The environment and conditions of both areas are exactly the same. OC. Some events that occurred in the past are similar or identical to events in the present. OD. Events that occurred in the past were dramatically different from those of today.
There are certain past occurrences that are comparable to or exact replicas of current happenings.
What can be learned about dinosaurs and other extinct creatures from the strata found in sedimentary rock?They keep a record of the old flora, fauna, and climates. The fossils contained therein are frequently used by scientists to determine the correct order of sedimentary rock layers.
What does the depositional environment normally reveal about symmetrical ripples like those shown in the sandstone below?Ripples display "tuning-fork" branches and are symmetrical. This suggests to a geologist that wave action was present during the sandstones' deposition (nearshore).
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which of these events is a likely result of chemical water pollution?
A. Sediment particles floating in water clog the gills of fish.
B. Fish die from lack of oxygen due to an algal bloom.
C. Rainbow trout disappear from a stream because of high water temperatures.
D. Algae are killed by solvents that have run off into a pond.
Fish die from lack of oxygen due to an algal bloom is a likely result of chemical water pollution. Therefore, option (B) is correct.
What is chemical water pollution?Chemical water pollution refers to the presence of harmful chemicals or substances in water bodies such as lakes, rivers, and oceans. These chemicals may come from various sources, including industrial processes, agriculture, and human activities. Common types of chemical pollutants in water include heavy metals, pesticides, oil spills, and toxic waste.
Chemical water pollution can have harmful effects on the environment and human health, including reduced water quality, contamination of aquatic life, and the spread of waterborne diseases. Preventative measures, such as proper waste disposal and treatment, are necessary to minimize chemical water pollution and protect water resources.
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Collect data: Blood carries many vital substances. Four of these are listed above the Microscopic view. Oxygen and sugar are needed by all body cells. Carbon dioxide and urea are waste products. What are the concentrations of each substance in this sample?
Oxygen:
Carbon Dioxide:
Sugar:
Urea:
Answer:
Explanation:
in the given sample of blood concentration of all the comonents is normal. the concentration of urea is 2.6 to 6.5 mM, concentration of carbon dioxide is 23-29 meq/L, while concentration of glucose ad oxygen are 0.9 g and 20.1 ml respectively.
Blood is the component of the circulatory system which is essential for the transport of gases and excretion of waste products. It is crucial for nutrient and oxygen supply to the body.
The concentration of oxygen was 95.6 mmHg, carbon dioxide 39.3 mmHg, Sugar 115.5 mg and urea 13 mg.
The vital substance of blood can be explained as:Red blood cells are called erythrocytes that are responsible for oxygen transportation through the hemoglobin component to the body parts while on their way back it carries the carbon dioxide.Sugar is the major form of energy needed by the body for functioning which enters the blood from the liver.Urea is the waste complement removed with the help of blood collected from the liver and excreted by kidneys.Therefore, the normal concentration of blood substances is oxygen 95.6 mmHg, carbon dioxide 39.3 mmHg, Sugar 115.5 mg and urea 13 mg.
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What features allowed you to distinguish some of the organism on set 2
we cannot see the picture?
This diagram is attempting to compare the sizes of the four inner planets. What is wrong with this diagram?
A.Mars is larger than Earth
B.Venus is larger than Earth
C.Mercury is not larger than Venus
D.Earth is not the largest inner planet.
B, Venus is less than Earth, and Earth is less than Mars
Which is a compound that is only found in the cells of autotrophs that perform photosynthesis to enable these organisms to create their own food?
Answer: In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar. The glucose gives plants energy. Plants also use glucose to make cellulose, a substance they use to grow and build cell walls.
What will we do with waste materials? Waste water, garbage, sewage, industrial pollutants--the amount of waste produced grows
each year. The increasing amount of waste materials also requires a growing need for professionals in the field of
A)
world politics.
B)
energy conservation
C)
environmental engineering
D)
marketing and cost analysis.
Answer: environmental engineering
Explanation:
Explicitly explain how a living organism obtains energy after eating.
Answer:
Explanation:
Tiny bits of the food you ate break down into a simple sugar called glucose. In your cells, energy from the sugar is released when oxygen and glucose combine in a reaction. The reaction produces water, carbon dioxide, and energy in the form of ATP. This chemical process is happening all the time in your cells.
Why is Glycolysis also known as Alcoholic or lactic acid Fermentation?
Answer:
In lactic acid fermentation, pyruvate from glycolysis changes to lactic acid. This type of fermentation is carried out by the bacteria in yogurt, and by your own muscle cells. In alcoholic fermentation, pyruvate changes to alcohol and carbon dioxide. This type of fermentation is carried out by yeasts and some bacteria.
Have the numbers of solid colored snails decreased significantly due to bird predation? Explain
your answer.
Answer:
Yes
Explanation:
birds pick out patterns because they are up in the air so the more brighter colored the snail the less of them there are
The Jules Verne novel "20,000 Leagues Under the Sea" tells the story of the voyage of the submarine Nautilus. If one league equals 3 miles, how many kilometers did the Nautilus travel on its journey? Please round your answer to the 100's place
Answer:
96558.00 kilometers
Explanation:
From the title of the novel, it is assumed that the submarine covered 20,00 leagues on its journey.
1 league = 3 miles, therefore;
20,000 leagues = 20,000 x 3 = 60,000 miles.
1 mile = 1.6093 km
Hence,
60,000 miles = 60,000 x 1.6093 km
= 96,558 km
= 96558.00 km to the 100's place
Therefore, 96558.00 kilometers was covered by Nautilus during the journey.
How does the carrying capacity of the ecosystem for the white footed mouse respond to the changes in the amount of parasites? Compare graph 1 and graph 2 to help you answer the question, cite the data to support your answer (give numbers)
Answer:
See the answer below
Explanation:
The carrying capacity of the ecosystem for the white-footed mouse reduced in response to the changes in the amount of worm infected mice in the population.
The carrying capacity of an ecosystem for a particular population of organisms is the maximum number of organisms the ecosystem can support based on the resources it has.
The ideal carrying capacity of the ecosystem for the white-footed mouse oscillates between 36 to 40 in graph 1. The carrying capacity range reduced in graph 2 from 36 - 40 to 30 - 36 as a result of changes made to the number of mice infected with parasitic worms in the population of the animal.
Thus, the introduction of more worm-infected mice into the population probably put more pressure on the ecosystem resources thereby reducing the carrying capacity.
Charles Boyle was a scientist who studied the relationship between the
temperature and pressure of gases. According to Boyle, at a constant
temperature, the volume of a gas decreases as the pressure increases.
Which of the following terms describes Boyle's statement about how gases
behave?
A. Hypothesis
B. Observation
C. Theory
D. Scientific law
Answer:
D
Explanation:
The trait for tall pea plants is (T) and the trait for short pea plants is (t). The trait for smooth pea plants is (R) and the trait for wrinkled is (r).Two plants are crossed producing a F1 generation of plants with 612 tall and smooth pea plants and 188 short and wrinkled pea plants.What would be the most likely genotype of the parental generation?
Answer:
P generation = TtRr × TtRr i.e both parents were heterozygote for both traits
Explanation:
This question involves two genes encoding the height and texture in pea plants respectively. The alleles for tall and smooth pea traits are dominant over the alelles for short and wrinkled traits.
According to this question, two plants are crossed to produce F1 offsprings as follows: 612 tall and smooth pea plants and 188 short and wrinkled pea plants.
First, we turn this derived number of offsprings into ratio by dividing by the smallest number (188)
612/188 : 188/188
3.25 : 1
Approximately; we can say this is 3 (tall and smooth) : 1 (short and wrinkled)
Based on this ratio, which was got by Mendel for his F1 offsprings when he crossed pea plants, the parental generation has a heterozygous genotype (TtRr).
PLEASE HELP!!!
• Humans have some...
A.) 7,000 cells
B.) I Million total cells
C.) 30-37 trillion cells
D.) 876 Quintillion cells
E.) we are not made of true cells
Answer:
C. 37.2 Trillion cells.
Explanation:
Please someone help me I don’t know which is which
Answer:
a pili. f flagellae
b nucleoid g chromosome
c plasma membrane h ribosomes
d cell wall
e capsule
Explanation: