An AAaa tetraploid plant undergoes self-fertilization. At least two dominant A alleles are needed to obtain the dominant phenotype. At what frequency will progeny with the dominant phenotype appear?

Answers

Answer 1

Answer:

The frequency will be  35/36

Explanation:

An AAaa tetraploid plant will only produce a gamete which will be Aa, but during a self crossing a progeny with genotype AAaa will be produced and this will happen at a frequency of 35/36 and this simply means that the progenies produced during the self crossing  will all have a dominant phenotype


Related Questions

Can somebody please help me label this map please!!!!

Answers

It seems like this reference picture might help you.

The product of force and displacement is_________.​

Answers

I think it should be “work”

The product of force and displacement is “work”

Hope this helps you:))

3 main stages of cellular respiration ?

Answers

Answer:

The reactions of cellular respiration can be grouped into three stages: glycolysis, the Krebs cycle (also called the citric acid cycle), and electron transport.

Explanation:

;)


What is the elevation for points
A
B
C
D
X

Answers

Answer:

The highest elevation would be x the lowest would be c

ASAP What is the main negative effect of slash and burn deforestation in rain forests?
1. A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂
2.The erosion of thin, fragile tropical topsoils
3. Heavy smoke in the air causes respiration problems for humans
4. Bare land warms absorbs heat and warms the surrounding air faster than forested areas.

Answers

4. How can managers strike a balance between transactional and transformational leadership?
an advantage to a business organization

How do you know something is dead

Answers

Is this without equipment?

Depending on what organism you are talking about, animals that can be seen with the unaided eye you can tell that they are dead by studying their bodily movements such as the rise or falling of their chest.

Plants with the unaided eye, the best  indicator is to take a branch or piece off and study the insides color, if it is green then mostly likely they are alive.

Now microscopic organisms are harder to say, it depends on what you are referring to.

Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific ecosystem? What changes in this ecosystem would impact the biotic factors? A sample answer could include the following:







Biotic: Fish Crayfish Zooplankton Grasses



Abiotic: Sun Sedimentation Weather Changes:



Water pollution Air pollution Overfishing Dredging of the bottom of the lake

Answers

Answer:

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms, etc.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Water, air pollution

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

Explanation:

An ecosystem is composed of biotic and abiotic factors. Abiotic factors are non-living environmental factors such as water, air, soil, sunlight, and minerals. In aquatic ecosystems, abiotic factors include substrate type, water depth, nutrient levels, temperature, salinity, and waterflow. Biotic factors are the living organisms in the ecosystem and they include animals, birds, plants, fungi, etc.

In the image of the freshwater lake ecosystem given,

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Pollution: pollution such as water pollution and air pollution will adversely impact the biotic factors.

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

Answer:

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms, etc.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Water, air pollution

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

PLZZZZ HELPPPP!!


_____ are strands of DNA that are bundled up tightly containing proteins that create genes.

Answers

Answer:

chromatids

Explanation:

Answer:

chromosomes are strands of dna

Which statement provides the STRONGEST evidence in support of the scientists argument?

Answers

If there’s a picture I can’t see it

Which statements describe the energy in a food web? select three options.

a.When an organism eats another organism, it loses energy.
b. Producers have the greatest amount of available energy.
c. Energy can follow many different paths.
d. When an organism eats another organism, it gains energy.
e. Producers have the least amount of available energy.
f. Energy always follows a single path.​

Answers

Answer:

D, E, F

Explanation:

Answer:

d e f

Explanation:

What do producers use the sun's energy for?
a.) to reproduce
b.) to grow
c.) both a and b

Answers

Answer:

its both a and b

Explanation:

ballsack

Both a and b. Without the sun, producers wouldn’t be able to reproduce and also grow.

The number of_____in the nucleus is also known as the____number. ​

Answers

Answer:

The mass number also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus.

Answer:

The number of Protons and Neutrons in the nucleus is also known as the Covalent bonds.

Hope I helped!

What are the four major functions all cells perform

Answers

growth, mitosis, reproduction, and active transport

cells provide six main functions : they provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.

Explanation:

hope this helped you

what do u mean by sporangium​

Answers

Answer:

A sporangium (plural: sporangia) is the capsule structure belonging to many plants and fungi, in which the reproductive spores are produced and stored. ... The majority of sporangia produce haploid spores through meiosis, although some are able to produce spores through mitosis.

Found this on google, hope it helps, have a great day/night and stay safe!

If algae populations continue to decline, predict how this might impact the Great Barrier Reef food web.

Answers

Answer: the food web would crash.

Explanation: the great barrier reef's diversity would decline more and then the food web would crash since algae was the primary source, no ecosystem can live without a primary source to feed off of to gain energy and grow

Great barrier reef food web protects the coastline and is house to thousands of species. Algae is the primary producer on which the entire food web is based. If it continues to decline, ecosystem will crash.



What do you understand by Great Barrier reef food web ?

The biggest coral reef in the world is the Great Barrier Reef. It is situated on Australia's northeastern coast. With a length of 1429 miles and more than 9,000 species, the Great Barrier Reef is enormous. One of the most biodiverse places on the globe, it. Over 3,000 different varieties of coral may be found on the Great Barrier Reef, yet despite supporting such a diverse range of life, the reef is threatened by climate change. Coral bleaching, which harms reefs and the creatures that dwell there, is being caused by changing temperatures and rising carbon dioxide levels.


A food web is a visual representation of how energy moves through an ecosystem. Food webs reveal which creatures in an environment devour one another. Trophic levels are divisions that can be made within food webs. Producers always come first in food webs.


Therefore, if algae (Primary producer)  population continues to decline Great Barrier Reef food web will have a crash landing.

Learn more about Food web, here:
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On a scratch sheet of paper, complete the Punnett square of the cross between two heterozygous red-eyed flies (Rr). What color eyes will the offspring have?

Answers

Answer:

75% red, 25% other color (brown?)

Explanation:

A cross between two heterozygous red eye flies (Rr x Rr)

                     R                     r

R                  RR                   Rr

r                   Rr                   rr

The possible genotypes are RR, Rr, and rr. There are two possibilities of Rr.

Since the heterozygotes have red eyes, the red eye allele must be dominant. Therefore, RR and Rr genotypes will all have red eyes. That means 3/4 (75%) of offspring will have red eyes. 1/4 25% are h0m0zygous recessive (rr), and will therefore have the other eye color (question doesn't mention which colour this is, it is likely brown)

Can I please get the answer ?

Answers

Answer:

The answer is A. water, carbon dioxide, and energy.

Explanation:

What would happen if your heart valves stopped working?

Answers

Answer:

In heart valve disease, one or more of the valves in your heart doesn't work properly. Your heart has four valves that keep blood flowing in the correct direction. In some cases, one or more of the valves don't open or close properly. This can cause the blood flow through your heart to your body to be disrupted.

Select all that apply.

Which of the following would be found in the tundra?

Wolves
Bat
Snake
Polar bear

Answers

Answer:

polar bears and wolves

Explanation:

I would pick A and D, wolves and polar bears.

Animals like the Aritc hares, the wolf, the Aritic fox, the musk ox, and the polar bear, are examples of some animals that inhabit the tundra.

Sorry if this is wrong, but I hoped it at the least helped!

(I reread the question and realized how dumb I am for thinking you could only choose one, sorry).

Help pls i rlly need it?

Answers

C. The nucleus hope this help you!

Answer:

CELL NUCLEUS!!!

Explanation:


Which accurately describes the relationship between nutrients and life-forms in an estuary?

Answers

Explanation:

Remember, an Estuary is a term used to refer to an enclosed coastal body of slightly salty water having one or several streams or rivers flowing into it.

Found in an estuary are Nutrients (such as from decayed plants and animals) which are then released or transferred into an estuary. While the active life-forms in an estuary benefit from these nutrients during their lifetime after which when they die they become nutrients themselves.

what phylum does red algae belong in?​

Answers

Answer:

phylum Rhodophyta

Explanation:

Red algae falls under the kingdom Protista and phylum Rhodophyta.

Someone please help me on this question thanks

Answers

pretty easy Oxygen!!!!!!!!!!

Which phrase describes elevation?

the height of a feature above sea level
the distance of a feature above the clouds
the distance above the lowest point in the area
the height of a feature above the nearest mountaintop

Answers

pretty sure it’s “the distance above the lowest point in the area”

Answer:The height above sea level

Explanation: just did it

compare and contrast the process of reproduction in plants and animals​

Answers

Answer:

Animals have exceptions like Sponges and Corals.

Explanation:

PLS ANSWER WILL MARK BRAINEIST !!! NO SILLY ANSWERS.
Discussion Topic Worldwide, about twice as many people eat a plant-based diet as eat a meat-based diet. Aplant-based diet requires fewer resources to produce. It takes 28 calories of fossil-fuel energy to produce 1 calorie of protein from meat. In contrast, it takes only 3.3 calories of fossil-fuel energy to produce 1 calorie of protein from grain. With the population continuing to increase, some people believe it may be necessary to give up meat-based diets to ensure that there are enough resources to produce food for all Do you think that a plant-based or a meat-based diet is more nutritious, or are they both equally nutritious?

Why does a plant-based diet require fewer resources to produce? Do you think people should eat less meat? Why or why not?​

Answers

Answer:

I think that they are both equally nutritious and that they give us the nutrition that we need. a plant- based diet uses less resources because they use less water to produce the food as it suppress all animal based products. I think people should eat less meat because sometimes people put unhealthy chemicals in food that can be harmful and not healthy as a source to people.  

Explanation:

Hope this helps!!:)

What was the downfall of settling near the Tigris and Euphrates Rivers?

Answers

Answer:

Floods wiped out a lot, and I'm pretty sure there was sickness

Illnesses and floods but they did figure out a way to make it so it didn’t flood as much.

have this done correctly for brainiest​

Answers

LABELING

From Top to bottom

1) Ocular lens (Eye Piece)

__________________________________________________________

First Row Of the Labeling

2) Arms ( Right Box)

3) Revolving Nose Piece (left Box)

__________________________________________________________

Second Row Of the Labeling

4) Stage Clip (Right Box)

5) Objective Lenses (Left box)

__________________________________________________________

The Knobs in the Right

6) Course Focus Knob (the big Knob)

7) Fine Focus Knob (the small knob)

8) Mechanical Stage adjustment knobs (Small circular knobs in front of the course focus and fine focus knob)

__________________________________________________________

The Left Labeling below the objective lens

9) Stage

10) Condensor Lens

11) lamp or Illuminator

__________________________________________________________

Right Bottom 2 Labeling

12) Brightness adjustment

13) Base

__________________________________________________________

Functions

A) OCULAR LENS

B) MECHANICAL STAGE KNOBS

C) FOCUS KNOBS

D) MECHANICAL STAGE

E) STAGE CLIP

F) CONDENSOR LENS

G) LOW POWER OBJECTIVE LENS

H) BASE AND ARM

I) DIAPHRAGM

J) COARSE FOCUS KNOB

K) ILUMINATOR OR LAMP

L) HIGH POWER OBJECTIVE LENS

How many chromosomes will be found in
each of the two new cells formed as a result
of mitotic cell division?

Answers

At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.

23 pairs of chromosomes will be found in each of the two new cells formed as a result of mitotic cell division.

WHAT IS MITOSIS:

Mitosis is a kind of cell division that results in the formation of two daughter cells with the same number of chromosomes as the parent cell.

Mitosis is used for growth and tissue repair in living organisms. In mitosis, a parent cell divides into two new daughter cells, however, each cell possess the same number of chromosomes as the parent.

In a somatic human cell, there are 23 pairs of chromosomes (46 chromosomes). If this cell undergoes mitotic division, then, there will be 23 pairs of chromosomes in each cell formed.

Learn more: https://brainly.com/question/3327479?referrer=searchResults

Right answer gets brainliest!!!!!!!!!!!!!

Drag each statement to the correct location.
Arya observes that the grass behind her house is dry. She believes the water content in the soil is about two-thirds lower than that of other yards in the area. She's also convinced that the grass is dry because of the slope of her yard. She investigates the problem by following the scientific method. Place the steps she takes in the correct order in the flowchart.
She takes samples of the soil.
She runs tests to compare her soil
samples to other soil in the area.
She asks herself why the grass appears so dry.
She discusses the results with her
landscapers to see what can be done.
She predicts that the water content in the soil is
two-thirds lower than in the immediate area.
Reset Next

Answers

Answer:

Explanation she observers the that the grass is dry. Then she ask the questio. Then she predicts why the grass is dry, then she takes a sample, runs test, condcludes her findings discusses her research

She questions why it seems like the grass is so dry.She estimates that the soil's water content is two-thirds lower than the nearby area.She collects soil samples.To compare her soil samples to other soil in the area, she conducts tests.She talks with her landscapers about the outcomes to see what may be done.

So, the correct order is 1 -> 2 -> 3 -> 4 -> 5.

What are Landscapers?

Professionals known as landscapers plan, build, and manage outdoor spaces like gardens, parks, and lawns. They could be in charge of designing and constructing outside constructions like patios and retaining walls, as well as planting and maintaining shrubs, trees, and flowers.

They might also be in charge of installing and managing irrigation systems. Landscapers might work for landscaping firms or work for themselves.

Therefore, the correct order is 1 -> 2 -> 3 -> 4 -> 5.

Learn more about Landscapers, here:

https://brainly.com/question/31358787

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Your question is incomplete, most probably the complete question is:

Drag each statement to the correct location.

Arya observes that the grass behind her house is dry. She believes the water content in the soil is about two-thirds lower than that of other yards in the area. She's also convinced that the grass is dry because of the slope of her yard. She investigates the problem by following the scientific method. Place the steps she takes in the correct order in the flowchart.

She takes samples of the soil.She runs tests to compare her soil samples to other soil in the area.She asks herself why the grass appears so dry.She discusses the results with her landscapers to see what can be done.She predicts that the water content in the soil is two-thirds lower than in the immediate area.

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