Answer:
True
Explanation:
Petunia flower color is governed by two alleles, but neither allele is truly dominant over the other. Petunias with the genotype R1 R1 are red-flowered, those that are heterozygous (R1 R2 ) are pink, and those with the R2 R2 genotype are white. This is an example of incomplete dominance. (Note that superscripts are used rather than upper- and lowercase letters to describe the alleles).
a. If a white-flowered plant is crossed with a red-flowered plant, what is the genotypic ratio of the F1?b. What is the phenotypic ratio of the F1?c. If two of the F1 offspring were crossed, what phenotypes would appear in the F2?d. What would be the genotypic ratio in the F2 generation?
Answer:
a. 4 R¹R²
b. 4 Pink flowers
c. 1 Red, 2 pink and 1 white phenotypes
d. 1R¹R¹ : 2R¹R² : 1R²R²
Explanation:
This question involves a single gene coding for flower color in petunia plants. However, the allele for red flower color (R¹) is incompletely dominant over the allele for white flower color (R²), hence, a pink intermediate phenotype (R¹R²) is formed.
According to these questions;
A. If a white-flowered plant (R²R²) is crossed with a red-flowered plant (R¹R¹), all of the F1 generation will have a genotype of R¹R² (see attached image for punnet square).
B. The F1 generation, which possess a genotype: R¹R² will express the pink flower phenotype because neither of the two alleles are truly dominant over the other i.e incomplete dominance.
C. If two of the F1 offspring were crossed i.e. R¹R² × R¹R², each parent will produce R¹ and R² gametes. Using these gametes in a punnet square (see attached image), the following phenotypes will be produced in the F2 generation: Red, pink and white phenotypes
D. The F2 generation will possess a genotypic ratio of 1R¹R¹ : 2R¹R² : 1R²R².
Is this correct please tell me if it is and if it ain't tell me correct answer
Answer:
I think u right. it's what I woulda picked
During spring in Colorado, ice on the mountain tops melts into water. Some of this water gets trapped in cracks in the mountain rocks. With winter, the water in the cracks refreezes into ice. When water freezes, it expands. This often will cause the cracks in the rocks to grow, and eventually, pieces of rock break off. What type of weathering is taking place?
A.
specific heat
B.
chemical
C.
biological
D.
physical
Answer:
Physical
this type of weathering is known as freezing and thawing
HELP NOW PLS
Air masses are moved around by _____________.
Answer:
Air mass motion is usually from the air flow in the upper atmosphere. As a stream changes intensity, and position, it affects motion, and strength of air masses.
Explanation:
Where does a 'thought' go when forgotten
Answer:
It dont go anywhere because it never existed
Explanation:
its gone its gone
Which model represents a DNA molecule?
Answer: The answer is D because the way they line up!!
Explanation:
The model that gives a true representation of a DNA molecule would be the 4th model.
What is the structure of DNA?According to Watson and Crick, the DNA is a double strand molecule with each strand twisting around one another to form a ladder-like, double helix structure.
Also, there is a complementarity of nucleotide bases such that Adenine (A) always pairs with Thymine (T) while Guanine (G) always pairs with Cytosine (C).
Thus, model 4 ticks all the characteristics of a typical DNA molecule.
More on DNA can be found here: https://brainly.com/question/264225
#SPJ2
praw a diagram of the different type of
Soil horizon
Answer:
diagram
hope this pic helps you
Answer:
Hope it will help you be happy ^_^
HELP ASAP- 13POINTS
- explain the disease of flea
- how it is caused
- symptoms
- lifecycle of the disease with diagram and treatments
Answer:
that looks complicated
Explanation:
please do not answer other's question if you don't know the answer
PLS HELP, Why is gene flow important to the overall health of a species?
Answer:
Gene flow is an important mechanism for transferring genetic diversity among populations. ... Gene flow is expected to be lower in species that have low dispersal or mobility, that occur in fragmented habitats, where there are long distances between populations, and when there are small population sizes.
Explanation:
Answer:
Because it is important for transferring genetic diversity among populations. Even low levels of gene flow can have a large impact, counteracting the other evolutionary force.
Explanation:
The images represent sexual and asexual reproduction. These methods of reproduction vary in terms of the genetic composition of offspring. In __________ the offspring are genetically identical to the parents.
Answer:
in asexual reproduction the offsprings are genetically identical to the parents.
Explanation:
Answer:
Images B and C
Explanation:
.
Solar energy is difficult to store.
Answer:
si
Explanation:
Answer:
I believe that if you were to install a home battery, it should be pretty easy to store the excess energy for later use.
So, my guess is that it's false.
Can we please please help
Answer:
I would say d
Explanation:
Answer:
i think the answer is d.
In a living organism, what is an organ?
ОА.
a structure that provides a specific service within a cell
Св.
a group of similar cells that perfom a common function
C.
functional unit, or building block, of all organisms smallest unit that can carry on the activities of life
a structure composed of a number of tissues that work together to perform a specific task
0.
Answer:a structure composed of a number of tissues that work together to perform a specific task
Explanation:
PLEASE HELP ASAP! WILL GIVE BRAINLIEST TO CORRECT ANSWER! HELP!! HELP!!
The diagram shows the structure of an animal cell.
The image of an animal cell is shown with some organelles labeled numerically from 1 to 6. The outer double layer boundary of the cell is labeled 1. A stacked disc like structure is labeled 2. A broad rod shaped structure with an irregular shape inside it is labeled 3. The entire plain section that forms the background of the cell and is within the outer boundary is labeled 4. A small circular shape within the large circular shape is labeled 5. The large central circular shape is labeled 6.
Which number label represents the cell membrane?
1
2
4
6
(this is middle school science)
Answer:
4
Explanation:
Answer:
4
Explanation:
I took the test
Which of the following describes how the pollen must travel in order for pollination to occur?
Question 18 options:
. from the stigma to the anther
from an anther to the style
from an anther to the stigma
from the stigma to the pollen tube
Answer:
the answer is C
Explanation:
another word for stamen is anther and i took the K12 test
hope you do great
What type of cell is not differentiated
Oil is a nonrenewable resource because it:
is made from plant remains
will never run out
takes millions of years to make
is quickly and easily made
Answer:
C. Takes millions of years to make
which cells have cell walls
a) animals
b) animal and plants
c) neither
Answer:
Plant cells have cell wall as well as a cell membrane. Animal cells simply have a cell membrane and no cell wall.
The answer is c I'm pretty sure. Hope this helps!
Grasslands typically do not flourish when large herbivores are removed. In fact, they are soon replaced by broad-leaved herbaceous dicots, shrubs, and trees. Based on your knowledge of the structure and growth habits of monocots and eudicots, suggest a reason why.
Answer:
Grasslands and herbivores have a mutually beneficial symbiotic relationship. If larger herbivores such as Kangaroos and Elephants are removed from them, they may become extant.
Explanation:
Herbivores are always hungry and they are always looking for ways to replenish lost energy. Between tree shoots and grass, they often go for the former because they are tender, easier to reach, and less difficult to masticate than the young tree shrubs.
When baby trees become bigger, their shade prevents adequate sunlight from reaching the grass, then gradually they become scanty or subdued for as long as the shade remains.
When large herbivores are removed or leave a grassland, trees have the ability to flourish. Then the results indicated above happens.
Cheers!
You produced 639 plants with the following phenotypes round yellow gray 269 round yellow white 98 round green, gray 86 wrinkled yellow gray 88 round green white 27 wrinkled yellow white 34 wrinkled green gray 30 wrinkled green white 7 The (observed-expected)2 was as follows round yellow white 65.61 round green gray 15.21 wrinkled yellow gray 3.61 round green white 8.41 wrinkled yellow white 16.81 wrinkled green gray 0.01 wrinkled green white 9.00 What is the chi-square value
Note about the question:
Among the (observed-expected)² list, there is one value missing. This value corresponds to round yellow gray plants, and equals 0.002. This number was included in the explanation of the problem.
Answer:
The chi-square value is X² = 2.6813.
Explanation:
Available information:
Observed individuals numbers:
Total number in the population: 639Round yellow gray 269 round yellow-white 98 round green, gray 86 wrinkled yellow gray 88 round green white 27 wrinkled yellow white 34 wrinkled green gray 30 wrinkled green white 7The expected numbers
ratio 27:9:9:9:3:3:3:1 round yellow gray 269.58 round yellow white 89.86 round green gray 89.86 wrinkled yellow gray 89.86 round green white 29.95 wrinkled yellow white 29.95 wrinkled green gray 29.95 wrinkled green white 9.98The (observed-expected) ² numbers
round yellow gray 0.002round yellow white 65.61 round green gray 15.2wrinkled yellow gray 3.61 round green white 8.41 wrinkled yellow white 16.81 wrinkled green gray 0.01 wrinkled green white 9.00To get the chi-square value, we just need to replace the terms in the following equation.
Chi square= ∑ ((O-E)²/E)
Where,
∑ is the sum of the terms O refers to the Observed number of individual E refers to the Expected numbers of individualsX² = ∑ ((O-E)²/E)
X² = (0.002/269.58) + (65.61/89.86) + (15.2/89.86) + (3.61/89.86) + (8.41/29.95) + (16.81/29.95) + (0.01/29.95) + (9/9.98)
X² = 0.0000074 + 0.73 + 0.17 + 0.04 + 0.28 + 0.561 + 0.0003 + 0.9
X² = 2.6813
Among the (observed-anticipated)² list, there's one price missing. This price corresponds to spherical yellow-grey plants and equals 0.002. This variety became protected withinside the clarification of the problem.
The chi-square value is [tex]X^ 2 =2.6813.[/tex]
Information given.
Observed people numbers:
Total variety withinside the population: [tex]639[/tex]
Round yellow grey [tex]269[/tex]
spherical yellow-white 98
spherical inexperienced, grey 86
wrinkled yellow grey 88
spherical inexperienced white 27
wrinkled inexperienced grey 30
wrinkled inexperienced white 7
wrinkled yellow white 34
The anticipated numbers
ratio 27:9:9:9:3:3:3:1
spherical yellow grey 269.58
spherical yellow white 89.86
spherical inexperienced grey 89.86
wrinkled yellow grey 89.86
spherical inexperienced white 29.9!
wrinkled yellow white 29.95
wrinkled inexperienced grey 29.95
wrinkled inexperienced white 9.98
The (observed-anticipated) 2 numbers
spherical yellow grey 0.002
spherical yellow white 65.61
spherical inexperienced grey 15.2
wrinkled yellow grey 3.61 spherical inexperienced white 8.41
wrinkled yellow white 16.81
wrinkled inexperienced grey 0.01
wrinkled inexperienced white 9.00
To get the chi-square value, we simply want to update the phrases withinside the following equation.
[tex]Chi square = Sigma((O - E) ^ 2 / E)[/tex]
Where,
[tex]Σ[/tex] is the sum of the phrases
O refers back to the Observed variety of individual
E refers back to the Expected numbers of people
[tex]X ^ 2 = Sigma((O - E) ^ 2 / E)[/tex]
[tex]X^ 2 =(0.002/269.58)+(65.61/89.86)+ Chi quare = Sigma((O - E) ^ 2 / E)[/tex]
Where,
Σ is the sum of the phrases
O refers back to the Observed variety of individual
E refers back to the Expected numbers of people
[tex]X ^ 2 = Sigma((O - E) ^ 2 / E)[/tex]
[tex]X^ 2 =(0.002 / 9.58)+(65.61/ 89.86) + (15.2/89.86)+(3.61/89.86)+(8.41/29.95)+ (16.81/29.95) + (0.01/29.95) + (9/9.98)[/tex]
[tex]X^ 2 =0.0000074+0.73+0.17+0.04+ 0.28 + 0.561 + 0.0003 + 0.9[/tex]
[tex]X ^ 2 = 2.6813[/tex]
What is chi-square?
Pearson's chi-square test is utilized to inspect the job of chance in creating deviations among noticed and anticipated values. The test relies upon extraneous speculation since it requires hypothetical anticipated that values should be determined.
Hence it clearly calculates the value of chi-square.
To know more about chi-square refer to the link :
https://brainly.com/question/15232994
Water (H20) is a(n)
a. element.
b. atom.
C. compound.
d. carbohydrate.
Which of the following is NOT part of the cell theory?
a. There are many different types of cells with many different shapes and functions
b. The cell is the basic unit of life performing all necessary life functions
c. All living things are made of cells
d. All cells come from pre-existing cells
Answer:
Its a.
Explanation:
You got this
Which of the following is true based on the data?
Choose 1 answer:
Wheres the data
Explanation:
Answer:
Uh sir- i dont see anything, or a picture
Explanation:
Please update a picture so i know what to awnser!
Structure: Which of the following best describes the arrangement of the sides of the
DNA molecule
Bonding
Anitparallel
Alternating
Parallel
Music of
US 2:48
Answer:
Alternating
Explanation:
the arrangement of the sides of the
DNA molecule bonding is Alternating
The best description of arrangement of the sides of the DNA molecule bonding is; Alternating.
The DNA molecule is made up of of two strands that are wound around one another to form a shape known as a double helix.
The double-helix can be compared to a twisted ladder and is therefore categorised as alternating.
Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
Read more;
https://brainly.com/question/18418967
Ion pumps and phagocytosis are both examples of
________.
a. endocytosis
b. passive transport
c. active transport
d. facilitated diffusion
Answer:
A
Explanation:
EDGE2021
Ion pumps and phagocytosis are both examples of active transport. Therefore, the correct option is C.
The movement of molecules or ions across the cell membrane against a gradient of concentration, from an area of lower concentration to an area of higher concentration, is called active transport. In this whole process energy must be used in the form of ATP (adenosine triphosphate).
Ion pumps are membrane proteins that actively transport ions across the concentration gradient across the cell membrane. These ions include sodium, potassium, calcium or hydrogen ions. The ion concentration imbalance required for many cellular functions is maintained by these pumps.
On the other hand, phagocytosis is a type of endocytosis in which cells engulf large molecules or solid particles and internalize them. Energy is required for the formation of pseudopods and for the solubilization of substances in the phagosome inside the cell.
Therefore, the correct option is C.
Learn more about active transport, here:
https://brainly.com/question/29759743
#SPJ6
What is the difference between self-love and selfishness according to Aristotle?
ANSWER ONLY FOR YOU KNOW
Answer:
The right kind of self-love is an achievement, love for what is best in us, motivated by self-love. Selfishness for Aristotle does not hold negative connotation, when considered in the context of a good or virtuous man., but rather motivates human action.
Explanation:
When your body begins to get too hot, it begins to sweat in order to try and cool itself down in order to stay at a temp of around 98 degress. This is an example of what?
1. Cellular Respiration
2. Thermodynamics
3. Homeostasis
Answer:
it calms down and gets to get cool again
Answer:
2
Explanation:
thermoregulation is process that allows your body to maintain its core internal temperature
NEED HELP WITH THIS QUESTION!!! PLEASE HELP ME!!!
Answer: xylem
Explanation:
Direction of transport : Xylem= Upwards
Phloem=Upwards and downwards
How is physical weathering different from chemical weathering?
A.
Physical weathering is always faster than chemical weathering.
B.
In chemical weathering, the composition of the weathered substance is changed.
C.
In physical weathering, the composition of the weather substance is changed.
D.
Chemical weathering is always faster than physical weathering.
Answer:B. In chemical weathering, the composition of the weathered substance is changed.
Explanation: Chemical weathering is the act of changing its form, such as color. Physical weathering remains in its shape, but can change due to breaking into smaller sediments.
All of the following are composed of body cells EXCEPT
a. bone
b. kidney
c. liver
d. sperm
