BIOLOGY HIGH SCHOOL

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. What is the probability of having offspring that have wrinkled seeds and yellow seed color for the cross RRYY ´ RrYy?

Answers

Answer 1

Answer:

Answer:

The probability of having offspring that have wrinkled seeds and yellow seed color for the cross RRYY ´ RrYy is zero

Explanation:

Given

Round see (R) is dominant to wrinkled seed (r)

While Yellow seed (Y) is dominant to green seed (y)

Now a cross is carried out between RRYY * RrYy, the following offspring are produced

RRYY * RrYy

The gametes of RRYY are RY, RY, RY, RY

The gametes of RrYy are RY, Ry, rY, ry

RY Ry rY ry

RY RRYY RRYy RrYY RrYy

Genotype Ratio

RRYY: RRYy: RrYY: RrYy

4:4:4:4

1:1:1:1

Phenotype

All are round and yellow

The probability of having offspring that have wrinkled seeds and yellow seed color for the cross RRYY ´ RrYy is zero

Answer 2

Answer: All offspring F1 will be dominant for Round seeds ,there will be no recessive wrinkled. Try punnett square to be sure.

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Primary succession ________.a. is caused solely by human events b. occurs on preexisting soil c. occurs in areas without soil d. becomes normalized by climax species
Which of the following family of chemicals kills cells or stunts proteins, which can interfere with how a plant grows?fungicide herbicide insecticide rodenticide
Which of the following accurately describes the pH scale? A. The lower the pH is, the more basic the solution is. B. The lower the concentration of hydrogen ions, the higher the acidity is. C. The greater the concentration of hydroxide ions, the higher the acidity is. D. The greater the pH is, the lower the acidity is.

. Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? a.) One species preys on the other.
b.) The relationship is mutually beneficial.
c.) They share the same niche.
d.) One species benefits, while the other is neither helped nor harmed.

Answers

Answer:

C (they share the same niche)

Explanation:

Competition is a relationship between organisms resulting in a contest when both are trying to use the same resources related to their growth, reproduction and survivability. It is as a result of limited resources. Competition occurs in virtually all ecosystems in nature. This relationship develops when more than one organism in an environment has the same need for resources (niche) as another, to survive.

Each organism has a specific place in the ecosystem called NICHE. A species' niche is basically its ecological role or the function to which it is especially suited, which is defined by the set of conditions, resources and interactions it needs or can use.

The competitive exclusion principle says that two species can't coexist if they occupy exactly the same niche (competing for identical resources) or to put it in another way, two species in an ecosystem are bound to compete when they share the same niche (need for resources).

A very active person uses a large amount of energy and therefore has a highA temperature
B cholesterol level
C fat diet
d metabolism

Answers

The correct answer is option D, that is, metabolism.

Metabolism is a term used to signify mainly towards the dissociation of food and its succeeding conversion into energy required by an individual's body. It is something, which comprises both anabolism and catabolism that are the buildup and breakdown of components.

The procedure by which the body transforms what one eats into energy is known as metabolism. At the time of this complex biochemical phenomenon, the calories in beverages and food are amalgamated with oxygen to discharge the energy one requires to work. Therefore, a person having a high amount of energy will have a high metabolism.

a) a temperature is regulated by the body: so, not.

b) - rather not, most likely cholesterol level would be low

c) this is rather intedependent - a person can be active even without a fat diet.

d) I think this is the best answer. Metabolism is the exchange of energy in food into the energy that people use.

The cells of plants and animals are similar, except for a few different structures. Which structures are only found in plant cells?

Answers

The cells of plantsand animals are similar expect for a few different structures like the shape ofthe cells and cell wall. They differ in cell shape since animal cells are roundedand it has irregular shape while plant cells have fixed shape which isrectangular. Another structure is a cell wall. Animal cells don’t have cell wallwhile plant cells have. Plant cell wall is a structure surrounding the cellthat provides a number of functions such as strength to support the plant, Flexibility,Water-proofing, Barrier to pests, Protection against environmental stress, signalingand sensing.

Structures that only plant cells have is a cell wall.

Which of the following is NOT true of a reaction that breaks a bond?A. It creates low-energy products
B. It is what happens in cellular respiration
C. It is an endergonic reaction

Answers

C. It is an endergonic reaction.

Endergonic v/s Exergonic:

In the exergonic reaction, the reactants are at a higher free energy level than the products (reaction goes energetically downhill) while In the endergonic reaction reaction, the reactants are at a lower free energy level than the products (reaction goes energetically uphill).
Endergonic reactions use energy to build bonds while Exergonic reactions release energy through breaking bonds.
When a bond breaks, it creates low-energy products.
In cellular respiration, breaking of bond happens.

Therefore, the statement which is NOT true for a reaction that breaks a bond is option C.

Learn more:

brainly.com/question/14698440

Answer:

Explanation:

Endergonic reactions use energy to build bonds

Exergonic reactions release energy through breaking bonds

Meiosis II typically produces cells Each of which is

Answers

I believe the term you are looking for is "haploid," meaning that they have half the number of chromosomes as a regular somatic cell.
Hope that helped you!

Final answer:

Meiosis II produces haploid cells, each of which has half the genetic material compared to the original cell. This process involves the separation of sister chromatids leading to four new haploid gametes. Similar to mitosis, these cells go through stages such as interphase, but they do not duplicate chromosomes like in mitosis.

Explanation:

Meiosis II typically produces cells, each of which is characterized as a haploid gamete. In the process of meiosis II, the sister chromatids within the two daughter cells separate, forming four new haploid gametes.

This process is similar to mitosis; however, each dividing cell has only one set of homologous chromosomes, resulting in each cell having half the number of sister chromatids compared to a diploid cell undergoing mitosis. Essentially, the cells produced in meiosis I go through the events of meiosis II simultaneously, undergoing phases such as interphase or interkinesis before diving into meiosis II, during which chromosomes are not duplicated.

In terms of chromosomal content, cells at the start of meiosis II resemble haploid cells in G₂, preparing to undergo mitosis. Ultimately, this cellular division process produces four distinct haploid cells, each bearing half of the original genetic material from the parental cell.

Learn more about Meiosis II here:

brainly.com/question/11622266

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Can you become pragnant afrer your periods

Answers

It is possible but it all depends on when your period ends. A few days after your cycle ends that is when your fertility window opens up. And a little over a week after your period ends, that is when you begin to ovulate. This is the best chance for a woman to get pregnant.
Hope this helps!

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