Answer:
1) Phenotypic ratio= 9:3:3:1
2) The correct statement is C. The phenotypes of the R1R1 R2r2 and R1r1 R2R2 genotypes will be the same because the same number of dominant and recessive alleles are contributing to each genotype.
Explanation:
Available data:
kernel color in wheat is a continuous trait determined by two additive genesBoth genes equally contribute to kernel color determinationRed kernels are determined by two genes and two dominant alleles (R1R1R2R2)White kernels are determined by two recessive alleles at the same two genes (r1r1r2r2)Dominant alleles R1 and R2 contribute equally to kernel color and cumulatively control the intensity of the red kernel phenotypeR1 and R2 are dominant over r1 and r21)
1st cross: A true-breeding red plant with true-breeding white plant
Parentals) R1R1R2R2 x r1r1r2r2
F1) 100% of the progeny will be R1r1 R2r2
2nd cross: Between two dihybrids
Parentals) R1r1R2r2 x R1r1R2r2
Phenotype) Red Red
Gametes) R1R2, R1r2, r1R2, r1r2
R1R2, R1r2, r1R2, r1r2
By using the forked-line method:
1/4 R1R1 x 1/4 R2R2 = 1/16 R1R1 R2R21/4 R1R1 x 2/4 R2r2 = 2/16 R1R1 R2r21/4 R1R1 x 1/4 r2r2 = 1/16 R1R1 r2r22/4 R1r1 x 1/4 R2R2 = 2/16 R1r1 R2R22/4 R1r1 x 2/4 R2r2 = 4/16 R1r1 R2r22/4 R1r1 x 1/4 r2r2 = 2/16 R1r1 r2r21/4 r1r1 x 1/4 R2R2 = 1/16 r1r1 R2R21/4 r1r1 x 2/4 R2r2 = 2/16 r1r1 R2r21/4 r1r1 x 1/4 r2r2 = 1/16 r1r1 r2r2F2)
9/16 R1 - R2-, red phenotype3/16 R1- r2r23/16 r1r1 R2-1/16 r1r1 r2r2, White phenotypeNote: The "-" symbol represents either a dominant or a recessive allele.
Phenotypic ratio: 9:3:3:1
2)
We know that both dominant alleles R1 and R2 contribute equally to kernel color and cumulatively control the intensity of the red kernel phenotype.
Genotypes R1R1 R2r2 and R1r1 R2R2 are carrying the same amount of dominant alleles, all of them are contributing equally to the phenotype, meaning that the cumulative effect is the same in both cases.
If we compare, for instance, R1R1 R2r2 and R1R1 r2r2, we can assume that the first genotype is darker than the second one, because it has 3 dominant alleles ( R1, R1, R2), while the second one only has 2 dominant alleles ( R1, R1).
Dominant alleles contribute equally, but they have cumulative effects, so the more dominant alleles the are in a genotype, the darker is the kernel color.
C. The phenotypes of the R1R1 R2r2 and R1r1 R2R2 genotypes will be the same because the same number of dominant and recessive alleles are contributing to each genotype.
Why do we have to secure the inflated balloon
Answer:
cuz it will blow up xd need more secure
Answer:
it might fly away
Explanation:
QUESTION 8
Sleep deprivation is linked to less activity in the CA1 region of the hippocampus.
O True
O False
1. The diagram below represents part of Earth's latitude-longitude system
What is the latitude and longitude of point L?*
45°
30°
15° 0°
15° 30° 45°
30°
N
20°
10°
0°
LI
10°
20°
30°
O (A) 5º E 30°N
(B) 5° N 30°E
(C) 5° W 30° S
O (D) 5° S 30°W
Answer:
The answer is option D hopefully this helps
How are gymnosperm seeds and angiosperm seeds different?
Answer:
angiosperms have seeds that are closed within an ovary, gymnosperms have no flowers or fruits, and have unenclosed seeds on the surface of scales or leaves
Write extensively the 3 main constituent of DNA
Answer:
A single nucleotide is made up of three components: a nitrogen-containing base, a five-carbon sugar, and a phosphate group. The nitrogenous base is either a purine or a pyrimidine. The five-carbon sugar is either a ribose (in RNA) or a deoxyribose (in DNA) molecule.
Explanation:
What is dumping?
A.
Dumping is sending surplus products as aid to poor or disaster-stricken areas.
B.
Dumping is hoarding scarce goods to cause an increase in price.
C.
Dumping is disposing of food items that don’t meet state food standards.
D.
Dumping is exporting goods at prices that are lower than their value.
Answer:
C.?
Explanation:
Sorry if it wrong
What is the function body system shown below?
Answer:
provide nutrients to the body
Explanation:
this is the digestive system
Capturing energy is critical to
every environment because
without it producers are unable to
A. absorb water
B. make their own food
C. reproduce
D. recycle nutrients
Answer:
C. reproduce
Explanation:
Which feature is found in both cartilage and bone ?
Answer:
The features that are found in both cartilage and bone are, living cells embedded in a matrix
Explanation:
Answer:
it would be the nose
Explanation:
This type of sexual reproduction is when sperm and egg join together externally (outside of the body). *
Answer:
External Fertilization
Explanation:
Please mark brainliest
Who was credited with the discovery of the virus?
Answer:
Dmitri Ivanosky in 1892
Explanation:
please mark brainiest thank you
Did the seized tusk come from one of the recently slaughtered elephants? ________ What evidence supports your finding?
Complete question:
Now you are ready for your first major assignment. Your colleagues are investigating a newly seized tusk and wonder if the tusk is from a recently discovered crime where 10 elephants from the same population were found dead with their tusks removed. The genotype of the seized tusk for five short tandem repeat (STR) loci is shown in Table 1. Allele names for each of the STR loci correspond to their size in base pairs (bp). Table 2 lists the genotypes of the same five STR loci for 10 recently slaughtered elephants.
Did the seized tusk come from one of the recently slaughtered elephants? ________ What evidence supports your finding?
Note: You will find the tables in the attached files
Answer:
Probably the seized tusk belonged to elephant number eight.
Explanation:
Potentially, the seized tusk might belong to individual number eight. In both the tusk and the elephant, the genetic analysis resulted in the same-sized alleles for each locus.
FH19: 193 193FH60: 147 147FH67:97 103FH71: 62 62FH129: 152 160The fact that, among the ten individuals of the population, only the individual number 8 matches the tusk for SRT loci, suggests that it belongs to the animal, but it does not ensure it 100%.
1. The diagram below represents part of Earth's latitude-longitude system. 2 points
What is the latitude and longitude of point L?*
45°
30°
15° 0°
15° 30° 45°
30°
N
20°
10°
0°
LI
10°
20°
30°
O (A) 5º E 30°N
(B) 5° N 30°E
(C) 5° W 30° S
O (D) 5° S 30°W
Answer:
I am not sure but the answer must be C
How do chemical weathering affect land formation?
Answer:
Chemical weathering erodes the land/basically sort of melts the land away due to the pollution in the rain.
Explanation:
Answer:
Chemical weathering changes the molecular structure of rocks and soil. ... Sometimes, chemical weathering dissolves large portions of limestone or other rock on the surface of the Earth to form a landscape called karst. In these areas, the surface rock is pockmarked with holes, sinkholes, and caves.
What happens after Telophase?
&
36/86
>
C
Answer:
The chromosomes begin to uncoil, which makes them diffuse and less compact. Along with telophase, the cell undergoes a process called cytokinesis that divides the cytoplasm of the parental cell into two daughter cells.
Why is a pasture-type system is
more labor intensive than
controlled systems?
A. There is greater maintenance of the
equipment.
B. There is greater need to handle diseases.
C. There is greater area to cover to observe and
manage the animals.
D. There is greater cost of feed per animal.
Answer:
The correct option is C.
There is greater area to cover to observe and
manage the animals.
Explanation:
This is because pasture type system refers to a large area of land where grasses are grown and animals are allow to graze the area of land to obtained nutrients. In this system there is large area of land where animals are well observed while feeding in order to prevent the risk of loss and attacks.
Dose Centipede have cells
Answer:
eveything that has organic material has cells, for example, rocks have molecules not cells
Explanation:
You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases. How is this process an analogy for what happens to DNA over time? (Just 2-3 sentences)
40 points to whoever responds first
Answer:
Use Analogies You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases.
The story changes over time because of the way the teller and the listener communicating. The DNA of a newborn baby is a combination of their mom and dad. Every time the DNA changes it's because there is a new combination of two people.
what three phases of the cell cycle are considered interphase
Answer:
The cell cycle has three phases that must occur before mitosis, or cell division, happens. These three phases are collectively known as interphase. They are G1, S, and G2. The G stands for gap and the S stands for synthesis.
Explanation:
The three phases of the cell cycle that are considered interphase include G1, S phase and G2.
The cell cycle can be divided into the interphase and mitotic (M) phases.The interphase can in turn be divided into a Growth G1 phase, synthesis (S) phase and Growth G2 phase.The synthesis of the genetic material (DNA) occurs in the S phase, whereas in G1 and G2 the cell synthesizes all materials required to enter into cell division.In conclusion, the three phases of the cell cycle that are considered interphase include G1, S phase and G2.
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https://brainly.com/question/1688608
A student is performing experiments on a particular substance. Which
statement is an observation of a chemical property of the substance?
O A. It melts.
O B. It burns.
O C. It floats.
O D. Electricity cannot pass through it.
Will give brainly if it’s correct but if ur gonna guess don’t answer
Answer:
of what substance??
Explanation:
Answer: it burns
Explanation: a p e x
What is point source pollution?
In point source pollution, the pollutants come from a ______
, easily identifiable source.
Answer:
What is point source pollution?
In point source pollution, the pollutants come from a
single, easily identifiable source.
Explanation:
plato answer
which of the following terms would blue eyes represent in an organism?
A. genotype
B. phenotype
C. appearance
Answer:
phenotype
Explanation:
Genotype is the term which is responsible for the blue eyes in an organism because it occurs due to changes in genes.
What is genotype?The genotype of an organism refers to genes or genetic material of an organism. Genotype can also be refer to the alleles or variants an individual carries in a particular gene.
So we can conclude that genotype is the term which is responsible for the blue eyes in an organism because it occurs due to changes in genes.
Learn more about genotype here: https://brainly.com/question/22117
a radioactive element has a half-life of 3,000 years. if a sample of this element begins with a mass of 60 grams, how long would you have to wait for the mass to decrease to 15 grams
Answer:
N = 60 g
Half life : N/2 = 3000
N/4 = 15 g
Comment on the folding of protein in vaccum
Answer:
Protein folding is a process by which a polypeptide chain folds to become a biologically active protein in its native 3D structure. ... The amino acids in the chain eventually interact with each other to form a well-defined, folded protein. The amino acid sequence of a protein determines its 3D structure.
llz follow me
What is your opinion about minor children (under the age of 18) donating one of their kidneys for their brother or sister? Write at least three sentences stating your opinion and backing your answer.
A)x-linked
B)No answer text provided
C)recessive
D)dominant
Answer:
D)dominant
Explanation:
1. The expression of Hitchhikers thumb is due to recessive gene expression and you can express it. Use alphabet H. What is your genotype?
For each of the following minerals, say what properties of the material make it important in carrying out it's particular function.
a. tar roads
b. iron bulgar bars
c. plastic furniture
d. metal jewellery
e. clay for building
f. cotton clothing
Answer:
1. Tar Roads: The qualities of Tar that makes it ideal for road construction are:
The tar-like material that is used for road construction is a combination (emulsion) of water and liquid asphalt. It serves the purpose of permeating and closing up small lacerations in the existing pavement.
When the emulsion sticks to the "gravel" it reduces the potential for vehicles to skid on the road thus enhancing safety. The "gravel-like" emulsion is applied by rolling and sweeping.
Qualities of Tar are:
Adhesive: its the ability to stick to surfaces including materials such as gravel which it holds together makes it great for road construction;Waterproof: It is not water-soluble. Hence is not easily susceptible to the effects of running water. Resistant to High Temperature: The melting point of Tar is 54 degrees centigrade. The ground can heat up to 45 degrees celsius thus making Tar perfect for road construction as it can remain rigid even in the worst temperatures.2. Iron Burglar Bars
Steel bars are made from iron. The qualities of steel which make it perfect for securing places and things are:
Strength; This is the ability to withstand breakage and or destruction. Toughness: Steel is very tough and can not easily bend or break under static loads. Weldability: Most steel bars are actually welded together. Without this ability, steel probably would be useless as a material that can be used for protectionDurability: The only factor that degrades steel is rust. Rust happens when steel is exposed to oxygen which can be found in air and water.3.) Plastic Furniture
The primary qualities of plastic that make them suitable for furniture are:
Chemical stability: It does not rust or degrade when exposed to weather elements such as oxygen, water, etc. Good impact resistance: Depending on its thickness, plastic can bear a lot of weight and can take a lot of impact without deforming or breaking Good transparency and wear resistance: Plastic can be made transparent. This quality is essential for aesthetic purposes and hence can be used for various kinds of good-looking furniture. As furniture, its surface does not come off like hence it's durability.Low thermal conductivity: This means that it can bear heat without transmitting it easily. Ability to General formability, good coloring, low processing cost.4) Metal Jewellery
One of the best metals for jewelery is Tungsten. This is so because it is more durable and stronger than any other kind of material that can be used for jewelery purposes. It is about ten times harder than 18K gold and about four times harder than titanium. Other materials that can be used are:
titaniumstainless steel and cobalt5) Clay
In it's raw form, clay used for building might not be the best idea as it susceptible to water absorption and hence deformation which generally leads to a collapse of the structure. However, it becomes an excellent material of choice after it has been hardened into brick.
Brick is preferred in construction due to the following qualities:
hardnessHigh Compressive strength, Low Water AbsorptionFrost resistanceFireproofGreat Insulation6) Cotton is usually preferred as the material of choice for most kinds of clothing due to the following qualities:
Softness. The cotton plant is soft and fluffy and results in a fabric often retains that soft feel. Durability: Its molecular structure makes it able to last very long. Absorbency: it is able to absorb moisture/water. Hence making it more comfortable than synthetic materials High Dye Tolerance: Ability to hold dye well is an indespensable quality of a good fabric. You don't want to have a fabric whose colours are quick to fade. Breathability: This reduces is very important especially during summer or when the weather or environment is very hot.Cheers
The tar is roads that have quantities to make them deal with the construction. The liquid is a mix of asphalt and can be adhesive and waterproof.
The iron bars are used for securing the place and things. plastic furniture is used to make suitable furniture and is used for chemical stability etc. The metal jeweler is of titanium, cobalt and stainless steelLearn more about the following minerals.
brainly.com/question/26208691.
In which stage of the cell cycle does the cell die
A) interphase
B) mitosis
C) apoptosis
what is Otis’s gene versions for body color
Answer:
giao
Explanation: