Mendel carried out a dihybrid cross to examine the inheritance of the characteristics for seed color and seed shape. The dominant allele for yellow seed color is Y, and the recessive allele for green color is y. The dominant allele for round seeds is R, and the recessive allele for a wrinkled shape is r. The two plants that were crossed were F1 dihybrids RrYy. Identify the ratios of traits that Mendel observed in the F2 generation. Create a Punnett square to help you answer the question.

Simply create a dihybrid cross, and then create ratios from the outcomes. Remember that ratios only come from the bottom part of any fractions *If you need more help on dihybrid crosses I can send an example image

Dihybrid cross is a experiment including mating between two organisms, that are identically hybrid for two traits. The ratios of traits in F2 generation will be 9:3:3:1.

Punnett square is the square diagram used to identify the genotype of the cross in experiment.  

Genotype is the collection of genes and phenotype is the physical appearance of the individual. The Punnette square for the given case will be creates as given in the image attached.

Thus, the ratio of traits will be 9:3:3:1 in the F2 generation.

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List the differences of Eukaryotic and Prokaryotic cells.


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Pls help................................

describe how the greenhouse effect interacts with the hydrosphere, atmosphere, and cryosphere

Yes, we all know Pluto is no longer an official planet, merely a dwarf, but it still enjoyed full planet status when New Horizons rocketed from Cape Canaveral, Florida, on Jan. 19, 2006. Plutos demotion came just seven months later, a sore subject still for many.Were kind of running the anchor leg with Pluto to finish the relay," Stern says.The sneak peeks of Pluto in recent weeks are getting "juicier and juicier," says Johns Hopkins project scientist Hal Weaver. "The science team is just drooling over these pictures."The Hubble Space Telescope previously captured the best pictures of Pluto. If the pixelated blobs of pictures had been of Earth, though, not even the continents would have been visible.The New Horizons team is turning "a point of light into a planet," Stern says.An image released last week shows a copper-colored Pluto bearing a large, bright spot in the shape of a heart.Scientists expect image resolution to improve dramatically by Tuesday. The 7,767-mile span at closest approach is about the distance between Seattle and Sydney.New Horizons, weighing less than 1,000 pounds including fuel, has seven instruments that will be going full force during the encounter. Its expected to collect 5,000 times as much data, for instance, as Mariner 4.Were going to rewrite the book," Weaver says. "This is itthis is our once-in-a-lifetime opportunity to see it."The team gets one crack at this.Were trying to hit a very small box, relatively speaking," says Mark Holdridge, the encounter mission manager. "Its 60 by 90 miles, and were going 30,000 mph, and were trying to hit that box within a plus or minus 100 seconds."The only planet in our solar system discovered by an American, Pluto actually is a mini solar system unto itself. Plutojust two-thirds the size of our own moonhas big moon Charon thats just over half its size, as well as baby moons Styx, Nix, Hydra, and Kerberos. The names are associated with the underworld in which the mythological god, Pluto, reigned. New Horizons will observe each known moon and keep a lookout for more.Scientists involved in the 700 million effort want to get a good look at Pluto and Charon, and get a handle on their surfaces and chemical composition. They also plan to measure the temperature and pressure in Plutos nitrogen-rich atmosphere and determine how much gas is escaping into space. Temperatures can plunge to nearly minus-400 degrees.Bill McKinnon, a New Horizons team member from Washington University in St. Louis, Missouri, expects to see craters and possible volcanic remnants. A liquid ocean and a rocky core may lie beneath the icy shell.Anybody who thinks that when we go to Pluto, were going to find cold, dead ice balls is in for a rude shock," McKinnon says. "Im really hoping to see a very active and dynamic world."Pluto has tantalized astronomers since its 1930 discovery by Clyde Tombaugh using the Lowell Observatory in Flagstaff, Arizona. Some of Tombaughs ashes are aboard New Horizons. His two children, now in their 70s, plan to be at Johns Hopkins for the encounter.With its tilted, elongated 248-year orbit, Pluto has made it only a third of the way around the Sun since its discovery. The amount of sunlight that reaches Pluto is so dim that at high noon, it looks like twilight here on Earth. The massive surrounding Kuiper Belt, in fact, is called the Twilight Zone. The New Horizons team has its eyes on a few much smaller objects in the Kuiper Belt, and is hoping for a mission extension as the spacecraft continues toward the solar system exit on the heels of NASAs Voyagers 1 and 2 and Pioneers 10 and 11.For now, signals take 4hours to travel one way between New Horizons and flight controllers in Maryland.New Horizonsscience instruments will be cranked up to collect maximum data Tuesday, leaving no time to send back data. In fact, scientists wont be absolutely certain of success until Tuesday night, 13 hours following New Horizonsclosest approach, when it "phones home."It will be Wednesday before the closest of Plutos close-ups are available for release. And it will be well into next yearOctober 2016before all the anticipated data are transmitted to Earth.

What is the significance of this mission? What do you find extraordinary about it?

⦁ True or false?- Yogurt has good bacteria that is beneficial to humans

Which statement is true of chloroplasts?

A. They transport glucose into the cell.
B.They convert light energy into chemical energy.
C. They convert the energy in glucose into a more usable form.
D. They are present in animal cells, but not in plant cells.

I have scorpions in my home. What is the best way to 1: not get stung while awake and asleep. 2:make them leave and 3: keep them out????!!!! I live upstairs but l have seen 7+ i was stung by one and iv seen like 4 babies and my dad found more!!! Plz help me with my questions. Brainlyest if all are answered.

What kind of reservoir shaped a lot of the Grand Canyon? How do you know?

i can't find science so this will be kind of out of place. this is 6th grade work

25 points!!!!

Which water cycle processes usually cause a lowering in the water table? Which processes cause a rise?

The hardest question ever: What is truth?

The amoeba excretes waste through _________ while a sparrow excretes waste through __________.
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Think of Earth as a ball with a rod through it, standing for the axis. This makes it easier to imagine Earths orientation in space relative to other objects like the Sun. Now consider the Sun as another ball. Imagine the Sun located in the center of a disk, kind of like a Frisbee. The planets in the solar system would be positioned on the Frisbee but at varying distances from the Sun. The area we are imagining as a Frisbee is actually called the plane of the ecliptic. It is the plane of Earths orbit around the Sun. Earths axis is not oriented perpendicular to the plane of its orbit. It is tilted at 23.5 degrees from the perpendicular. Why is this an important detail? This orientation in space, relative to the Sun, has great influence on Earths seasonal changes.

QUESTION 1
In paragraph 4, what word or phrase gives you a clue to what the word perpendicular means?

Somewhat like a Frisbee

Relative to the Sun

Rather it is tilted

Orientation in space

When a cross is made between AaBb x AaBb, what fraction of the offspring is able to produce a genotype that is heterozygous for both characteristics?
A.3/16
B.9/16
C.1/16
D.4/16

HELP ASAP PLZZ // Which of the following is an example of the endocrine system maintaining homeostasis?

A) Detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response

B) Producing an excessive amount of hormones in the blood and not sending a signal to stop production

C) Releasing insulin to decrease blood sugar and releasing glucagon to increase blood sugar

D) Using sense organs to get information about the outside world and direct an appropriate body response

What molecule that is created during photosynthesis provides energy for cellular processes?

chlorophyll

ATP

oxygen

glucose

The diagram shows an animal-like protist.



This is most likely which type of protist?

a sarcodine because it has a nucleus
a sarcodine because it has a pseudopod
a parasite because it has cilia
a parasite because it has a flagellum

Number 1 of the cell in the image below is the

Which layer of the sun is shown extending into space in the picture above?

Corona
Radiative zone
Convective zone
Photosphere

Translate the words into math symbols. The difference of nine and a number is three. What steps would you take to translate the statement? Check all that apply. Replace "difference" with a division sign. Replace "difference" with a subtraction sign. Replace "a number" with the variable n, to represent an unknown value. Replace "is" with an equals sign. The translated equation is 9 ÷ n = 3. The translated equation is 9 – n = 3.

Which list places the layers of the sun in the correct order from outermost to innermost?

Corona, chromosphere, photosphere
Photosphere, radiative zone, convective zone
Convective, chromosphere, corona
Radiative zone, corona, convective zone

How does a machine, such as a ramp, help make work easier?

A machine can help decrease the input force and the output force.
A machine can help increase the input force and the output force.
A machine can help increase the input force and decrease the output force.
A machine can help decrease the input force and increase the output force.

Read the following summary, which describes a body process. Then, answer the question.

Blood enters the right side of the heart and travels to the lungs. There, the lungs eliminate carbon dioxide and exchange it for more oxygen. The oxygen-rich blood enters the left side of the heart. Then, arteries carry blood away from the heart.

What process is being described?

Circulation
Excretion
Immune response
Respiration

How could you describe the size of an atom?

A It is so large it is bigger than a tree in the forest.
B It is so small it cannot be seen without magnification.
C It is the size of a grain of sand and can be seen with our eyes.
D It is the size of an apple or a large piece of fruit.

Please help me with this question!

The atoms of gaseous helium are
A.
close together, moving around one another.
B.
far apart, moving fast, and bouncing off the container walls.
C.
close together, vibrating in a rigid structure.
D.
not moving at all.

Which of the statement(s) about eclipses is/are true?
A.The moon blocking out sunlight is what causes both a solar eclipse and a lunar eclipse, the difference is a solar eclipse the sun is totally blocked out, but in a lunar eclipse the sun is only partially blocked out.

B. A solar eclipse occurs only during 1st Quarter Moon and a lunar eclipse only occurs during 3rd Quarter Moon.

C.The earth blocking sunlight to the moon is a solar eclipse. The moon blocking sunlight to the earth is a lunar eclipse.

D. A solar eclipse occurs when the moon blocks out the sun casting a shadow on earth. A lunar eclipse is when the earth blocks sunlight casting a shadow on the moon.

True or false? The FLSA classifies employees as exempt or nonexempt from earning overtime pay for hours worked in excess of 50 hours per week.

Please help with this problem!

Which statement describes the motion of the sun?

The sun rotates more slowly at its equator.
The sun rotates faster at its equator.
The sun rotates faster at its poles.
The sun does not rotate at its poles.

Which is true of genes?

O They are sections of DNAthat produce the proteins that control an organism's characteristics

O They are proteins that produce sections of DNA which control the cell's activities

O They are features that can be observed rather than measured.

O They are the same as traits which show up in an organism if they are dominant​