Widow's peak is dominant to straight hairline, and freckles are dominant to no freckles.
One parent is heterozygous for both traits and one parent has a straight hairline and
no freckles. Use H for hair, and F for freckles. List the genotypes of the parents and
then complete a dihybrid cross for their potential offspring. List the phenotypic ratio
of the offspring once you have completed the cross.
Answers
The phenotype ratio would be 25% each for widow's peak and freckles, widow's peak without freckles, straight hairline with freckles, and straight hairline without freckles.
Dihybrid crossingGenotype of the heterozygous parent: HhFf
Genotype of the other parent = hhff
Crossing the two parents:
HhFf = 1/4 = Widow's peak, freckles
Hhff = 1/4 = Widow's peak, no freckles
hhFf = 1/4 = straight hairline, freckles
hhff = 1/4 = straight hairline, no freckles.
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Related Questions
1. True or False - An organism may have the same common names that remain the same from area to area and language to language.
2. True or False - Scientists try to organize living things into groups that have biologic significance.
3. True or False - In binomial nomenclature, each species is assigned a single scientific name.
4. True or False - In the name Ursus maritimus, the first term of the name refers to the genus.
5. True or False - Linnaeus's system of classification uses 5 taxonomic categories.
6. True or False - Scientists often look for similar genes in similar organisms.
7. True or False - Evidence shows that the same gene that codes for a particular protein in human muscle also codes for that protein in yeasts, indicating they are the same species.
8. True or False - The kingdom Eubacteria contains the same organisms as the domain Bacteria.
9. Biologists use a classification system to group organisms in part because organisms:
10. Scientists assign each kind of organism a universally accepted name in the system known as:
11. For many species, there are often regional differences in their:
12. In taxonomy, a group at any level of organization is referred to as a:
13. In the scientific version of a species name, which of the names is capitalized?
14. The second part of a scientific name is unique to each:
15. Animals that are warm-blooded, have body hair, and produce milk for their young are grouped in the class:
16. All organisms in the kingdoms Protista, Plantae, Fungi, and Animalia are:
17. Which of the kingdoms in the six-kingdom system of classification was once grouped with plants?
18. Sometimes, organisms that are not closely related look similar because of:
19. The animals Panthera leo (lion) and _____ tigris (tiger) belong to the same genus.
20. Fill in the blank: The domain _____ is composed of the kingdom Eubacteria.
21. Fill in the blank: The use of a two-part scientific name for organisms is called _____ nomenclature.
22. Fill in the blank: In Linnaeus's system of classification, the two smallest categories are genus and _____.
23. Fill in the blank: The domain _____ contains plants, fungi, protists, and animals
24. Fill in the blank: In taxonomy, the class Mammalia is grouped with the classes Aves, Reptilia, Amphibia, and several classes of fishes into the phylum _____.
25. Fill in the blank: The most general and largest category in Linnaeus's system is the:
What is the scientific name for humans?
Answers
Answer:
1. False
2.True
3.False
4.True
5.False
6.False
7.False
8.True
9.are very numerous and diverse
10.binomial nomenclature
11.common names
12.taxon
13.The first name only
14.species in its genus
15.Mammalia
16.eukaryotes
17.Fungi
18.convergent evolution
19.Panthera
20.Bacteria
21.Binomial
22.Species
23.Eukarya
24.Chordata
25.kingdom
26.Homo sapien
Explanation:
1. It is true that an organism may have the same common names that remain the same from area to area and language to language.
2. It is true that scientists try to organize living things into groups that have biologic significance.
3. It is true that In binomial nomenclature, each species is assigned a single scientific name.
4. It is true that in the name Ursus maritimus, the first term of the name refers to the genus.
5. It is false that (Linnaeus's system of classification uses 7 taxonomic categories: Kingdom, Phylum, Class, Order, Family, Genus, Species)
6. It is true that Scientists often look for similar genes in similar organisms.
7. It is True that Evidence shows that the same gene that codes for a particular protein in human muscle also codes for that protein in yeasts, indicating they are the same species.
8. It is True that The kingdom Eubacteria contains the same organisms as the domain Bacteria.
9. Biologists use a classification system to group organisms in part because organisms share common characteristics and evolutionary relationships.
10. Scientists assign each kind of organism a universally accepted name in the system known as binomial nomenclature.
11. For many species, there are often regional differences in their common names.
12. In taxonomy, a group at any level of organization is referred to as a Taxon.
13. In the scientific version of a species name, The genus name is capitalized .
14. he second part of a scientific name is unique to each species.
15. Animals that are warm-blooded, have body hair, and produce milk for their young are grouped in the class Mammalia.
16. All organisms in the kingdoms Protista, Plantae, Fungi, and Animalia are Eukaryotes.
17. Fungi kingdoms in the six-kingdom system of classification was once grouped with plants.
18. Sometimes, organisms that are not closely related look similar because of Convergent evolution.
19. The animals Panthera leo (lion) and Panthera tigris (tiger) belong to the same genus.
20. The domain Bacteria is composed of the kingdom Eubacteria.
21. The use of a two-part scientific name for organisms is called Binomial nomenclature.
22. In Linnaeus's system of classification, the two smallest categories are genus and Species.
23. The domain Eukarya contains plants, fungi, protists, and animals .
24. In taxonomy, the class Mammalia is grouped with the classes Aves, Reptilia, Amphibia, and several classes of fishes into the phylum Chordata.
25. The most general and largest category in Linnaeus's system is the Kingdom.
The scientific name for humans is Homo sapiens.
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By the end of the first week following conception, the fertilized egg now has approximately 100 cells and is known as the ____________.
Answers
Answer:
blastocyst
Explanation:
blastocyst is a rapidly dividing ball of cells.
By the end of the first week following conception, the fertilized egg now has approximately 100 cells and is known as the blastocyst.
What is cell?
Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Basically, cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
The unicellular animals are made up of single cell and all the functions carried out in a single cell like amoeba and multicellular organisms are made up of multiple cells and there is specific cell for specific functions.
Therefore,by the end of the first week following conception, the fertilized egg now has approximately 100 cells and is known as the blastocyst.
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What is the role of CO₂ in global temperature regulation?
Answers
Answer:
carbon dioxide controls temperature because the carbon dioxide molecules in the air absorb infrared radiation. The carbon dioxide and other gases in the atmosphere are virtually transparent to the visible radiation that delivers the sun's energy to the earth
Explanation:
Which type of scientific statement is defined as a statement of fact that is generally accepted to be true and universal
because it has always been observed to be true?
O theory
O probability
Olaw
Ohypothesis
Answers
I think it's theory
Please give brainliest
A scientific law is a factual claim that is commonly acknowledged to be true or universal because it has consistently been seen to be true.
Thus, Only a law among the alternatives is acknowledged as being universal.
After several years of experiments, a finding is recognized as a law. It must demonstrate its universality in order to be regarded as such at any time and in any location on Earth.
A theory is merely the best explanation for a fact, and it can be abandoned when a better one emerges. As a result, it is impossible to predict how long a theory will last.
Thus, A scientific law is a factual claim that is commonly acknowledged to be true or universal because it has consistently been seen to be true.
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How does a nerve
impulse begin in a
neuron?
A. A positive charge is created in the cell that travels
down it.
B. The cell filling with sugars gives it an energy surge.
C. Water moves down the cell by osmosis.
D. The cell contracts like a muscle and connects to the
other neurons. i
Answers
A positive charge is created in the cell that travels down it does a nerve
impulse begin in a neuron. Thus, the correct option is A.
How the neuron get stimulus?When a neuron receives a chemical stimulation, a nerve impulse is formed. The electrical action potential of the nerve impulse passes along the axon membrane to the axon terminal. Neurotransmitters are released at the axon terminal, which transfer the nerve impulse to the next cell.
The resting potential of a neuron is the electrical differential across its membrane. The sodium-potassium pump, a transport protein, creates the resting potential. This protein generates a positive charge by moving a high number of sodium ions (Na+) outside the cell.
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Answer: A. A positive charge is created in the cell that travels
down it.
Explanation:
Which of the following is NOT an adaptation
that bacteria have evolved to survive
antibiotics?
A. They recognize when antibiotics enter the body and go dormant
to evade being attacked.
B. They have alternate ribosomal sites for protein synthesis.
C. They have become completely immune to the antibiotics.
Answers
They have become completely immune to the antibiotics is not an adaptation that bacteria have evolved to survive antibiotics.
What are Antibiotics?These are substances which inhibit the growth of bacteria through different mechanisms.
This is done through mutation in which there are alternate ribosomal sites for protein synthesis or being dormant.
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Answer: A
Explanation:
Many living organisms are adapted to specific temperatures. This is an example of which characteristic of life?
a. use of energy
b. reproductive ability
c. growth and development
d. maintaining homeostasis
Answers
Answer:
The answer is C growth and development
The typing of human blood is determined by three alleles: A, B, and O. Alleles A and B are codominant to one another and O is recessive to both alleles, A and B.
AA/ AO – type A blood, AB – type AB blood, BB/ BO – type B blood, OO – type O blood.
A woman who is homozygous for type B blood marries a man who is heterozygous for type A.
What is the genotype ratio of their offspring?
What is the phenotype ratio of their offspring?
Answers
Answer:
genotype ratio = 1AB:1BO
phenotype ratio = 1 type AB blood: 1 type B blood
What secretion helps waste to move through the large intestine?
Answers
Answer:
I'm almost certain that it's mucus. (been a hot sec since I took a bio or anatomy class)
Explanation:
Here's a quote: "The colon secretes mucus to bind and lubricate the food waste to help it pass through smoothly as it is dehydrated." -the Cleveland Clinic
Why does cellular respiration only happen by night in plants
Answers
Answer: The Photosynthesis process ceases.
Explanation: To explain it is simple like the plant respiration occurs 24 hours per day, but night respiration is more evident since the photosynthesis process ceases.
The graph shows the supply and consumption of forests when the consumption rate and population growth rate are both low.
what does the graph predict for the future? A Less air pollution.
B Forest overgrowth.
C Reduced demand.
D Resource depletion.
Answers
The graph predict resource depletion because the supply and consumption of forests when the consumption rate and population growth rate are both low.
What are the consequences of the depletion of natural resources?The consequences of this ecological excess are increasingly evident, with imbalances such as the extinction of species, scarcity of fresh water, soil erosion, loss of biodiversity and global warming.
Reaching this limit means that all the resources used for the survival of humanity are depletion and we are in “debt” to the planet, in this case it is the graphic representation of this depletion.
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Question 6 of 25
Which is a kingdom?
O A. Eukarya
OB. Mammalia
OC. Animalia
OD. Prokarya
Answers
Answer:
mammalia
is a kingdom
hope it helps you
PLEASE HELP! ITS A BIOLOGY QUESTION.
Answers
Answer:
A) Red Light
B) Green Light
A) Blue Light
B) Cyan Light
Explanation:
I believe that you are overthinking this. White light is a combination of all the colors on the visible spectrum. This means that if you shine a white light through a red filter, it will only show the red light that is in the white light. There will be only red because the other colors of the spectrum are not visible due to the filter.
This rule applies to all of the filters.
label the structure of a plant cell ( worksheet is due after 5 days )
Answers
Answer:
Explanation:
A)Vacuole
B)Cell wall
C)Endoplasmic reticulum
D)Nucleus
E)Ribosomes (ig)
F)Chloroplasts
G)Golgi apparatus
Blood pumps through arteries due to contraction of the arterial walls but flows more freely through veins because there is little to no contraction. Based on this information, which would you expect to be present in higher quantities in arteries than in veins
Answers
Excitable cells like those found in muscle tissue are expected to be present in higher quantities in arteries than in veins.
What are Excitable cells?Excitable cells are defined as those cells that are capable of generating electrical impulses when stimulated. Example of such cells include:
Neurons,muscle cells( smooth, skeletal and cardiac)Endocrine cells.The artery is made up of higher amount of smooth muscles than the veins therefore, excitable cells like those found in muscle tissue are expected to be present in higher quantities in arteries than in veins.
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Scientists use specific levels of organization to analyze the biosphere. which level of organization describes a school of anchovies? a school of anchovies. at least 20 fish can be seen swimming. school of anchovies ecosystem community population biome
Answers
The level of organization that describes an anchovy school is community.
What is a community?Communities can be defined as sets of populations, that is, a community is formed by organisms that live in a given area in a given period of time. Thus, the community differs from the population for being constituted by groups of organisms of more than one species.
With this information, we can conclude that the level of organization that describes an anchovy school is community.
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Answer:
b) community
Explanation:
Which two statements indicate that Lizzie is avoiding plagiarism
Answers
Answer:
She puts the statement in quotation marks and includes the name of the source's author. At the end of her presentation, she includes a works cited slide to give credit to all the books, magazines, and websites she read while preparing her presentation.
Explanation:
These both show how she avoids plagiarism because she uses quotation marks to show that the sentence doesn't belong to her. She also cites at the end so that people who have the information she uses to get their credit.
From 2007 to 2010, the mink population stayed fairly consistent, but in 2010, the population dramatically decreased. Which of the following could describe what happened to the population of minks?
The mink population ran out of space to live so many died
A catastrophic event occurred like a disease or big natural disaster that quickly wiped out a large number of mink.
There were more voles for the mink to eat, so their population increased
The bears began to eat the mink in 2010 so the population of minks decreased.
Answers
The most likely event that led to a sudden decrease in the population of mink in 2010 would be a catastrophic event. The correct option would be B.
Decrease in populationA sudden and sharp decrease in the population of an organism can be caused by a host of factors. These include:
catastrophic events such as disease outbreaks, natural disasters, famine, etc. a sudden appearance of predators in the environmentIf the predator has always been in the environment with the population of the organism, this will not result in a sharp decline in the population. A population of predators suddenly joining the environment may be the only cause for a sharp decline in the population of the organism.
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How are meiosis and mitosis different?
Answers
Answer:
Mitosis results in two identical daughter cells, whereas meiosis results in four sez cells so yeah
which one is a organic molecule .
Answers
option c is the right answer please mark me as brainlist
Answer:
Ch4 is a organic molecule.
which of the following is an early sign or symptom of Gonorrhoea?
A.) Brain damage
B.) hard red ulcers around genitals
C.) burning sensation when urinating
D.) blisters around genitals
PLEASE CHOOSE THE CORRECT ANSWER, TY.
Answers
matter that makes up the living and dead organisms in an ecosystem
a: Solutions
b: A biotic matter
c: molecules
d: biotic matter
Answers
You are given a graduated cylinder and are asked to determine how much liquid is in the container. First, you put the cylinder on a flat surface. Wha
will you do then to get the most accurate reading?
Answers
Answer:
find the width and length?
Help me pls it about cells
Answers
Plant cells and animal cells have their own different properties and structures.
What do you mean by cell?The simplest form that can sustain life on its own and makes up all living things, including the body's tissues is called a cell.
1. Both plant cell and animal cell.
2. Plant cell
3. Eukaryotic cell
4. Plant cell
5. Plant cell
6. Plant cell
7. Animal and plant cell
8. White blood cell and amoeba
9. Both animal and plant cells.
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Mushroom and yeast are called saprophytes
Answers
Answer:
they are a fungus or plural they are a fungi or funguses
What are the three techniques scientists can
use for correlation?
Answers
☆...hope this helps...☆
_♡_mashi_♡_
What is the capacitance per square centimeter of such a cell wall?.
Answers
When does behavioral isolation occur?
Answers
What kind of rna carries the amino acids to the ribosome?.
Answers
Answer:
TRNA.
Explanation:
Transfer RNA carries the amino acid to the ribosome during protein synthesis.
What is the name of the green pigment molecule in plants that absorbs solar energy during photosynthesis?
No links please.
Answers
Answer:
Chlorophyll
Explanation:
chlorophyll is a photosynthetic green pigment that are found in mostly plants and algae, and they help plants absorb energy from the sun. they can be found in the chloroplast.
Answer: chlorophyll
Explanation:
Thats what makes plants mostly green.