In a certain plant, the allele for red flower color (R) is dominant over the allele for white flower color (r). A cross is performed between a plant with red flowers and a plant with white flowers. The offspring are 47 plants with red flowers and 51 plants with white flowers. What are the genotypes of the parent plants?

Answers

Answer 1

Answer:

Rr and rr

Explanation:

The genotypes of the parents would be heterozygous red (Rr) and true-breeding white (rr).

Since the allele for the red flower color (R) is dominant over that of the white flower color (r), for a cross to produce both red and white flower color plants, the red parent must be heterozygous (Rr) and the white parent true-breeding (rr).

       Rr    x    rr

   Rr    Rr    rr    rr

Rr = red

rr = white

If the red parents is true-breeding

        RR    x    rr

      Rr    Rr   Rr    Rr

All their offspring would be red without any white flower color.

Hence, the genotypes of the parent are Rr and rr.


Related Questions

Changes in the number of chromosomes or the structure of a chromosome are called _____ mutations.

Answers

Answer:

Chromosomal mutations

Chromosome mutation

The bony landmark of the sacrum that makes up the lateral surface and articulates with the ilium is called the

Answers

Answer: auricular surface

Explanation:

The bony landmark of the sacrum that makes up the lateral surface and articulates with the ilium is called the auricular surface.

The auricular surface is given the name because it looks like the shape of the ear. It is cartilage coated and articulate by the sacrum. It should be noted that below the auricular surface, we have the preauricular sulcus.

Meiosis occurs in a series of different phases and creates genetically unique reproductive cells.



Which process helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II?
fertilization
independent assortment
crossing over
chromosome replication

Answers

Answer:

Meiosis occurs in a series of different phases and creates genetically unique reproductive cells. The process which helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II, is crossing over (C). Crossing over is the exchange of genetic material between two homogenous chromosomes. It is one of the final phases of prophase I. This process is called synapsis. It occurs when the matching regions on the matching chromosomes break and then reconnect to the other chromosome .

The process that helps to make meiotic cells genetically different and occurs during prophase I is called crossing over.

Crossing over, also known as recombination, is the interchange of genetic material between non-sister chromatids of homologous chromosomes.

This process (crossing over) occurs in Meiosis I, specifically during Prophase I.

Crossing over during Prophase I and the independent assortment of homologous chromosomes during Metaphase I represent meiotic processes that help to increase genetic variation in gamete (sex) cells.

In conclusion, the process that helps to make meiotic cells genetically different and occurs during prophase I is called crossing over.

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help asap!! "Watermelon snow" in Antarctica is caused by a species of photosynthetic green algae that thrives in subzero temperatures (Chlamydomonas nivalis). These algae are also found in high altitude in year-round snowfields. In both locations, UV light levels tend to be high. The reddish-pink color of these algae is due to the presence of carotenoid pigments, which absorb blue light while reflecting red light. Those pigments protect the chloroplast from ultraviolet radiation, as well as absorbing heat, which provides the algae with liquid water as the snow melts around it. This molecular variation in plants illustrates

A) relative fitness because the molecular adaptations in chlorophyll pigments have passed to the next generation
B) innate variability because plants have evolved molecular differences to an environmental stimuli
C) unselective adaptation because plants have evolved molecular differences to adapt to different wavelengths of light
D) inclusive fitness because differences in chlorophyll pigments increase the proliferation of beneficial traits in the population

Answers

Answer:

A

Explanation:

This molecular variation in plants illustrates relative fitness because the molecular adaptations in chlorophyll pigments have passed to the next generation. The correct option is A.

What is relative fitness?

Absolute fitness is normalized relative fitness. It is a biological fitness measure that compares the reproductive rate of a genotype or phenotype to the maximum reproductive rate of other genotypes or phenotypes in a given population.

The contribution of an individual to the next generation's gene pool in comparison to the contributions of other individuals.

It is important to remember that natural selection acts both directly on the phenotype and indirectly on the genotype that controls that phenotype.

Because the molecular adaptations in chlorophyll pigments have been passed down to the next generation, this molecular variation in plants demonstrates relative fitness.

Thus, the correct option is A.

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math solve questions​

Answers

What is your question? Math can solve many things including Questions. :)

How would you finish the last sentence? What would you say to Sherman so he understands that velocity and force are different? Write a response and be prepared to share it with a partner.

Answers

Answer:

Velocity is a speed while force is a push or pull.

Explanation:

Velocity refers to the speed of an object in a specific direction whereas force is a push or pull in order to move an object one place to another. When we apply force on an object, the object moves in the direction of force applied so this moving is known as velocity. The unit of velocity is meter/ second whereas unit of force is newton which is equal to kilogram meter / second square.

Answer:

Velocity is a speed while force is a push or pull.

Explanation:

Velocity refers to the speed of an object in a specific direction whereas force is a push or pull in order to move an object one place to another. When we apply force on an object, the object moves in the direction of force applied so this moving is known as velocity. The unit of velocity is meter/ second whereas unit of force is newton which is equal to kilogram meter / second square.

Explanation:

A large region that has a particular type of climate that effectively influences the types of plants and animals that inhabit each ecosystem is a(n) ___________________.

Answers

I think this is a biome

would the co2 molecules be able to leave faster if the cell had a smaller volume or larger volume

Answers

Answer: smaller volume

Explanation:

Small distance the co2 has to travel

What are the two chemicals that the body makes out of tryptophan? What do these two chemicals do?

Answers

Answer:

MAKE AN EXPLOSION HONESTLY

Explanation:

DNA has two strands. If the sequence of nucleotides of one strand was known, is it possible to use that information to determine the sequence of the second strand? Explain your reasoning for your response using an example DNA sequence. and this is for biomedical science.

Answers

Answer:

Yes

Explanation:

DNA, which is the genetic material, is a double-stranded molecule i.e. possess two strands. Each strand is made up of a sequence of nucleotide base, which are complementary to one another. The complementary base pairing rule as proposed by Chargaff states that Adenine (A) base will always hydrogen pair with Thymine (T) base while Guanine base (G) will always pair with Cytosine (C) i.e. A-T, G-C.

For example, If the sequence of nucleotides of one strand was CTAGCGGATC, the sequence of nucleotide of the other strand will be GATCGCCTAG. Hence, based on this question, the information of the sequence of base on one strand can be used to determine the sequence of the second strand.

which of the following is NOT a way that carbon gets back into the air? 1. Burning of fossil fuels. 2. burning of plants and trees. 3. cells in living things give off carbon as they work. 4. crushing of rocks

Answers

Answer:

Crushing of rocks

Explanation:

It's right.

As DNA polymerase adds new nucleotides it's creating a new nucleic acid polymer. What kind of reaction is this enyme facilitating?

A. hydrolysis

B. dehydration

C. catalysis

D. exothermic

Answers

Answer:

C. Catalysis

Explanation:

The polymerase catalyzes the nucleophilic attack of the 3′ hydroxyl group terminus of the polynucleotide chain on the α-phosphate group of the nucleoside triphosphate to be added

What are the products of photosynthesis?

Answers

Answer: During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6).

Explanation:

What will most likely happen if the plankton population decreased in this ocean system?

Answers

Answer:

B since shrimp rely on plankton as a food source.

Explanation:

Shrimp feed on plankton if the population of plankton decreased the shrimp would have little to no food there for the population of shrimp would also decrease

What biological process causes new strains of pathogen to develop

Answers

Hlo.....I’m new in Brainly

Plzzzz thnx my other 2-3 ans plzzzz

It involves
(1) disassembly of the infectious virus particle,
(2) replication of the viral genome,
(3) synthesis of the viral proteins by the host cell translation machinery, and
(4) reassembly of these components into progeny virus particles.

Which of the following are examples of asexual reproduction?
Select all that apply.
☞︎ a plece of a cactus falling to the ground, taking root

☞︎ a male and female organism producing offspring together

☞︎ a bacterial cell dividing

☞︎ a bacterial cell sharing a plasmld with a different bacterial cell

꧁Plz select all apply, thank you꧂

Answers

The last 2 answers I believe and Srry if I’m not right
C and D I believe, hope it’s right

Which of the following describes a type of cell division that produces cells used in sexual
reproduction?
A. mitosis
B. meiosis
C. binary fission
D. cell splitting.

Answers

Answer:

b

Explanation:

Answer:

A) Meiosis

Explanation:

I believe you are asking about what type of cell division produces cells with half the number of chromosomes aka eggs and sperm.  Meiosis is the process that creates these cells.

What is the difference between food chains and food webs? Food webs show the flow of energy from producers to consumers, and food chains show the flow of energy from consumers to producers. Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem. About ten percent of the energy is passed on to the next trophic level in food webs, but in food chains, about ninety percent is passed on to the next trophic level. Heat is lost when energy is passed on to the next trophic level in food chains, but in food webs, heat is not lost when energy is passed on to the next trophic level.

Answers

Answer:

Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.

Explanation:

Unlike food chains, food webs show more detailed information about the different animals in an ecosystem and show multiple energy transfers to different animals from the same sources.  

By looking at these examples, you will notice a dramatic difference in detail:

Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.

What is food chain?

Food chain shows the relationship between organisms by the food they eat.

What is food web?

A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.

Difference between food chain and food web

Food webs show interconnection of food chains about the different animals in an ecosystem and different energy transfer processes.

Thus, food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.

Learn more about food chains and food web here: https://brainly.com/question/2179

Choose all the answers that apply.
Binary fission _____.
is the type of reproduction used by bacteria
occurs in organisms that do not have a membrane bound nucleus
is a type of sexual reproduction creates identical copies of the parent cell
is a type of asexual reproduction

Answers

Explanation:

occurs in organisms that do not have a membrane bound nucleus. Explanation: Binary fission is an asexual mode of reproduction. As it does not involve formation and fusion of gametes.

Answer:

Binary fission _____.

Occurs in organisms that do not have a membrane bound nucleus

Is a type of sexual reproduction

Is a type of asexual reproduction

Explanation:

What is bob ross plus barney equal?

Answers

Answer:

an anoying dinosaur

Explanation:

Answer:

bobby

Explanation:

NEED HELP ASAP! Energy in a Carbohydrate

To create your model:

Look up and copy and paste or draw a model of a carbohydrate showing all of the elements and the bonds that hold the elements together.

Identify and color-code the different types of bonds in your molecular model

Label representative bonds with bond energies for the different types of bonds

Total CPE:

Using your model

Calculate the total chemical potential energy:

Create a Bar graph counting the number of each type of bond

Create a pie chart modeling the percent of chemical potential energy in each bond type

Answers

SORRY FOR INFORMATION!!!

Answer:

Anything else

Explanation:

O don't know bro sorry for giving this information

f nitrogen and hydrogen combine in a combustion reaction, what would the product of the reaction be?

CH4 + 2O2 →
2 + 2H2O

Answers

Answer:

NH3

Explanation:

When hydrogen and nitrogen react it forms ammonia which is also as Haber's process

Remember, when working with combustion reactions the products are almost ALWAYS
CO2 + H2O.

Your equation should now be:

CH4 + 2 O2 -> CO2 + 2 H2O

Note: this equation is balanced

If we’re talking about combining Nitrogen and Hydrogen in a reaction, it would synthesize to form ammonia (NH3)

The chemical equation for that would be:

N2 + H2 -> NH3

Balanced chemical equation:

N2 + 3 H2 -> 2 NH3

(If you’re wondering where the 2’s come from in N2 and H2, it’s because they are known as diatomic elements.

Diatomic elements are:

Hydrogen
Oxygen
Bromine
Fluorine
Iodine
Nitrogen and
Chlorine

•To make it easier to memorize remember the acronym, HOBrFINCl.

•When these elements are seen individually in a chemical equation the 2 at the bottom (aka subscript) is placed.

Hope this helps. If you have any questions please let me know in the comments.

All of the following can interfere with the breakdown of organic waste material in the soil except:
A
minerals
B
solvents
C
plastics
D
pesticides

Answers

a. minerals
because it’s the only one not harmful to soil. it would instead help the soil breakdown organic waste.

Why has the amount of space junk increased so much in the last 2 years?

Answers

Answer:

Humans

Explanation:

Because we humans are wasteful and put stuff into the atmosphere that doesn't belong there.

Answer: you didn’t provide the multiple choice but

Explanation:

The amount of space junk has increased due to a sudden increase in lost rockets and broken satellites

If anyone can help it would be greatly appreciated

Why is the distinction between crude density and ecological density necessary?

Answers

Answer: Crude density includes all the land within the organism's range whereas Ecological density includes only that portion of land that can actually be colonized by the species.This variation in density is important to both the species in question and its predators.

Explanation:

Answer:

This called crude density. ... Density measure in terms of the amount of area available as living space is ecological density. Crude density includes all the land within the organism's range whereas ecological density includes only that portion of land that can actually be colonized by the species.

Explanation:

hope this was helpful...

DNA polymerase and RNA polymerase are enzymes. They belong to the macromolecule category

Answers

Answer:

Catalysts

Explanation:

Both catalyze the reactions

DNA polymerase and RNA polymerase are enzymes. They belong to the catalyst category.

What type of macromolecule is RNA polymerase and DNA polymerase?

RNA polymerase is an enzyme that creates RNA and catalyzes the initiation and elongation of RNA chains from a DNA template.

RNA is formed by a process known as transcription.

DNA polymerase is a type of enzyme that is responsible for creating new duplicates of DNA, in the form of nucleic acid molecules.

Nucleic acids are polymers, which are big molecules produced up of smaller, repeating units that are chemically related to one another.

Thus, DNA polymerase and RNA DNA polymerase and RNA polymerase are enzymes. They belong to the catalyst category.

To learn more about polymerases click here:

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The kinetic theory states that particles are in constant _______________.
Choose one answer.
a. Opposition
b. Motion

Answers

Answer:

Motion

Explanation:

Kinetic particles are always in motion, that should just be the fundamental law of kinetic energy

The kinetic theory states that particles are in constant motion

b. Motion

Reverse transcriptase is an enzyme utilized by many retroviruses. This enzyme most likely demonstrates which type of activity

Answers

Answer:

The activity of speed up the process.

Explanation:

Reverse transcriptase is an enzyme encoded from the genetic material of retroviruses that accelerate or speed up the process of  transcription of retrovirus ribonucleic acid into deoxyribonucleic acid. Reverse transcriptase enzyme is also called RNA-directed DNA polymerase. Some retroviruses such as human immunodeficiency virus (HIV) and avian myeloblastosis virus used this Reverse transcriptase enzyme.

When you catch a cold, your body fights the cold virus and tries to eliminate is as quickly as possible. Why does your body react this way to a virus?

Answers

Antibodies fight infection and viruses as part of your immunity system.

Which is a renewable source?

Answers

Answer:

wood

Explanation:

You can grow trees quickly, but it takes the Earth a long time to create petroleum, iron, and coal.

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