Biology High School

the diagram shown represents a dihybrid cross between two pea plants heterozygous for both seed color and seed shape.

what is the phenotypic ratio of the offspring?
A. 1:1:1:2:2:2:2:4
B. 1:3:3:9
C. 1:4
D. 4:12


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The Diagram Shown Represents A Dihybrid Cross Between Two Pea Plants Heterozygous For Both Seed Color

Answers

Answer 1

Answer:

1:3:3:9

Explanation:

There are 12 yellow seeds, from which 9 are smooth and 3 are rough.

There are 4 green seeds, from which 3 are smooth and only 1 is rough.

Both the appearance and color of the seeds is something you need to look out for when dealing with phenotypes.

Answer 2

The phenotypic ratio of this dihybrid cross will be 1:3:3:9.

What is phenotype?The term phenotype simply refers to a trait that may be observed. Pheno means observe  and is derived from the same root as "phenomenon." As a result, it's a sort of organism that can be seen, and it may relate to anything from a common characteristic like height or hair color to the presence or absence of disease.What is dihybrid cross?A mating experiment between two animals that are identically hybrid for two features is referred to as a dihybrid cross. A heterozygous organism is one that possesses two distinct alleles at the same genetic location, or locus.The cross between a homozygous pea plant with round yellow seeds and wrinkled green seeds is an example of a dihybrid cross.RRYY alleles are found in round yellow seeds, while rryy alleles are found in wrinkled green seeds.

Hence the correct option is B.

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The Diagram Shown Represents A Dihybrid Cross Between Two Pea Plants Heterozygous For Both Seed Color

Related Questions

i need help with this,
it’s for biology

Answers

Explanation:

this is your answer

I hope it is clear

Answer: This is the REAL answer smh

Explanation:

True or False: Diffusion requires energy input to occur.

Answers

Answer:

False

Explanation:

Diffusion does not require energy input from the cell. Diffusion transports water across the cell membrane.

Answer:

If you are talking about simple diffusion, the answer is false, but if you are talking about falicitated diffusion, the answer is True.

PLS HELP FAST!!!! You have a natural-gas (methane, CH4) stove. When you ignite a natural-gas stove, the methane reacts with oxygen (O2) to produce carbon dioxide and water vapor. Write a balanced equation for this reaction, and be sure to show your work. (6 points)

Answers

Answer:

Methane (CH4) ( C H 4 ) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4+2O2→CO2+2H2O C H 4 + 2 O 2 → C O 2 + 2 H 2 O .

Explanation:

The balanced equation for the reaction of methane with oxygen is CH₄ + 2O₂→CO₂ + 2H₂O.

What is methane?

Methane is a gas and a chemical compound with formula CH₄. It is a colorless and odorless gas and very flammable. It is made up of carbon and hydrogen. Methane comes under greenhouse gas.

As it is highly reactive, it reacts with the gases present in the environment.  Here, methane is reacting with oxygen. When one molecule of methane reacts with two molecules of oxygen, it produces carbon dioxide and two molecules of water.

The reaction happens in the presence of heat and high temperature. The balanced reaction is written when the same number of moles are present on both sides of the reaction.

CH₄ + 2O₂ → CO₂ + 2H₂O.

Thus, the balanced equation for the reaction CH₄ + 2O₂→CO₂ + 2H₂O CH₄ + 2O₂ → CO₂ + 2H₂O.

To learn more about methane, refer to the link:

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If a plate boundary has a mid-range ridge, it must be a (blank)
PLS HELP

Answers

It’s a divergent plate boundary. Divergent plate boundaries move away from each other causing magma to rise. The magma cools when it hits the ocean water and solidifies causing ridges to form.

4. What happens during fertilization that makes the offspring unique from the original cells?

Answers

Answer:

the dna pattern is different and gets its own dna strand and some of parents and parents combined

Explanation:

Gametes, which are half the number of chromosomes from the parent cells, fuse together. The haploid gametes becomes a zygote which are diploid cells, resulting to twice the number of chromosomes as the gametes. This process include meiosis and mitosis.

what is stimuli in biology in terms of igcse ????​

Answers

Answer: A Stimulus is any change either internal or external which leads to a response. This could be a noise, smell or the changes in blood sugar level.

Explanation:

HELP PLEASE
Which of these chemicals is not a pollutant?
A. Methane
B. Nitrogen gas
C. Nitrate
D. Carbon dioxide

Answers

Answer:

All these chemicals are primary causes of pollution. Although, only one isn't an air pollutant. Which would make my best Guess C. Nitrate

Explanation:

A. Methane Is the main component in gas and oil. Oil companies have been responsible for polluting our air with about seven million tons of methane per year.

B. Nitrogen gas in general is one of the main air pollutions. otherwise know as Nitrogen dioxide.

C. Nitrates are found in ground waters and transfers into the soils surrounding said waters. Nitrates commonly are a cause of death in infants when drinking tab water or eating crops grown from nitrate infected soils. Adults aren't nearly as infected by this.

D. Carbon Dioxide is a greenhouse gas that pollutes our air and has been a main cause of global warming.

I'm at a loss for answering this question since all of these are polluting our earth in some way. The only way I can think to answer this is that all but one are air pollutants. So maybe the one that is not a air pollutant is the correct answer. My best guess is C. Nitrate

Hopes This Helps :)

P=
MULTIPLE CHOICE QUESTION
Pick all the correct answers
unsaturated fatty acids have the maximum
amount of hydrogens
unsaturated fatty acids have double bonds
saturated fatty acids have double bonds
Trans fats are the healthiest fats to eat
because they are the only ones found in
nature
saturated fatty acids have the maximum
amount of hydrogens
Trans fats are the worst fats to eat because
they are not found in nature

Answers

Answer: These are all of the correct answers

Unsaturated fatty acids have double bonds.Saturated fatty acids have the maximum amount of hydrogensTrans fats are the worst fats to eat because they are not found in nature.

Explanation:

Differentiate between pathogens and vectors​

Answers

Answer:

A pathogen is an agent that causes disease, such as a virus, bacterium, protozoan, or parasite. A vector is an organism, often an arthropod, that carries a pathogen to its host. So, for example, for malaria the pathogen is a protozoan called Plasmodium, and the.

Explanation:

Is it multiple choice?

what do you think about this

Answers

Answer:

I would conclude the the answer is D. Sugar, Glucose, and Starch.

Explanation:

Hopefully this helps! If this wasn't the answer you were looking for please don't hesitate to private message me or comment here. Have a nice day/night! :)

Which factor is most responsible for atmospheric convection?

Answers

Answer:

atmospheric pressure and winds (I’m pretty sure)

_______ species are the first species to colonies disturbed or newly created environment

Answers

Native species should be the correct answer

Hundreds of years ago, a volcanic eruption killed many plants and animals on a tropical island. Today, the island looks much as it did before the eruption. Why is this true? Destroyed ecosystems always return to their exact original state. Altered ecosystems only regain stability from the development of grasses. Geographic barriers prevent the migration of animals to island habitats. Destroyed environments can recover through ecological succession.

Answers

Answer:

Destroyed environments can recover through ecological succession.

Explanation:

Ecological succession describes a progressive change in the species in an ecological community over time.

This can happen after some disturbance such as a fire, earthquake, or volcanic eruption. It can mean that a e can return to the state it was before the event.

In a particular organism, scientists notice that cells are dying at a higher rate than normal. Upon further examination, they find that these cells die after they became filled with large lipids and protein of many different sizes. what do you predict is the reason for the cells death apex

Answers

Answer: lysosomes are malfunctioning so molecules targeted for destruction are not being removed.

PLEASE HELP!!!!!! I HAVE TO TURN THIS IN SOON!!!!
HELP ME FILL IN THE BLANKS
Oceanic crust is ___________ dense than continental crust, thus it goes underneath the continental crust forming a ________________.

Answers

The first line is MORE dense

Second line forming a PLATE.

Answer:

More dense

Explanation:

Some astronomers work for consulting firms that provide expertise to government agencies. Which of the following explains why an astronomer would work as a consultant?


An astronomer would be able to focus on research alone.

An astronomer would not have to obtain a national security clearance.

An astronomer would apply expertise to improve satellite designs.

An astronomer can make more money working as a consultant.

Answers

Answer: An astronomer would apply expertise to improve satellite designs

The one that explains why an astronomer would work as a consultant is an astronomer would apply expertise to improve satellite designs. The correct option is c.

Who is an astronaut?

An astronaut is a person who works in the areas of space. They have knowledge of space equipment, and technologies.

A satellite is an instrument that revolves around the planets. There are natural satellites and artificial satellites. Natural satellites are the moon and artificial satellites are made by space design artists and all the activities are checked by astronauts.

A consultant is an assistant that works with an astronaut. They have expertise in technologies and assistance in the making of space equipment.

Therefore, the correct option is c. An astronomer would apply expertise to improve satellite designs.

To learn more about astronauts, refer to the link:

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If an organism has a cell wall, it can only be a ______ cell

Answers

Answer:

Plant

Explanation:

Because it has a cell wall

What is technology?​

Answers

Answer: the application of scientific knowledge for practical purposes, especially in industry.

Explanation: Have a blessed day hopefully this helped!

Explain how human activities may have led to species being threatened or endangered?

Answers

Answer:

Invaded their habitats and hunted them

Explanation:

Species become endangered for two main reasons: loss of habitat and loss of genetic variation. A loss of habitat can happen naturally Human activity can also contribute to a loss of habitat. Development for housing, industry, and agriculture reduces the habitat of native organisms.

Hope dis helps! :D

why do food chains in an ecosystem rarely contain more then five organisms

Answers

Why do food chains in an ecosystem rarely contain more than five organisms? ... Nutrients are lost from the ecosystem when organisms die. The conversion of food into growth by an organism is not very efficient. Energy is recycled by the decomposers back to the producers.

How does a catalyst work?
A. by increasing the temperature of a chemical reaction
B. by decreasing the pressure of a chemical reaction
C. by increasing the concentration of reactants in a reaction
D. by decreasing the activation energy of a reaction

Answers

Answer:

D. By decreasing the activation energy of a reaction

Explanation:

How do scientists communicate data accurately with one another?
A. They multiply their measurements together.
B. They use a universal system of units.
C. They average their measurements.
D. They make flash cards.

Answers

Answer:

b

Explanation:

they use a universal system of units

Answer:

Its B. They use a universal system of units.

ASAP PLEASE

How are photosynthesis and cellular respiration related?
Group of answer choices

The products of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The products of photosynthesis are the products of cellular respiration.

Answers

The answer is the first one :)

Answer:

The answer is The products of cellular respiration are the same as the reactants of photosynthesis.

Explanation:

because they have the same reactants

BRAINLIEST BRAINLIEST BRAIBLIEST PLEADE ANSWER DUSUSISISJJAIXNDJDD

Answers

Answer:

uh I am not really sure But I think it is HE

Explanation:

It appears the answer must be:

Hydrogen

How does the Golgi Body and Plasma membrane work together ?

Answers

Answer/Explanation:

The Golgi body is a system of flattened sacs that is involved in the packaging, modification, and transport of proteins. It is particularly important for proteins that have to be transported outside of the cell.

Proteins from the Golgi that are to leave the cell are transported in vesicles. When they reach the membrane, the vesicles fuse with it and release the proteins outside of the cell

An earthworm turns away from light

Answers

its called Photophobia

In addition to traditional coursework, most microbiology programs require which of the following?
O independent studies
O professional internship
O laboratory experience
O group projects​

Answers

Answer:

laboratory experience

Explanation:

Got It right on test

The answer IS:

laboratory experience

Which of the following is a true statement about cartilage?
A.
It is found on articular surfaces of bone
B
It receives oxygen and nutrients by diffusion
C. The skeleton originated from cartilage in the womb
D
All of the above

Answers

Answer:

A. it is found on articular surfaces of bone

Answer:

All of the above, it is not A

Explanation:

А
gene is a segment of DNA on a chromosome. How are genes related to the proteins made by a cell?

Answers

Answer:

The DNA in genes is transcribed into RNA and translated into proteins

Explanation:

The sequence of DNA in a gene is transcribed into a messenger RNA (mRNA). This sequence of this mRNA is translated into a sequence of amino acids that form a protein.

The sequence of DNA in a gene directly affects the amino acids, and therefore the structure and function of, a protein.

Answer:

The structure of the genes in a cell determines the structure of the proteins made by the cell.

Explanation:

help what goes where help asap will try to mark brainliest!!​

Answers

Go from the bottom of the food chain to the top, the grass is eaten by herbivores, the bird and frog eat insects, and the snake is a carnivore and eats the other animals.
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