Answer:
1/16 of the progeny is expected to be plants with wrinkled and green seeds, rryy
Explanation:
Available data:
Round seeds (R) are dominant to wrinkled seeds (r)Yellow seeds (Y) are dominant to green seeds (y)A true-breeding pea plant with round and yellow seeds is crossed to a true breeding plant with wrinkled and green seedsThe F1 progeny self fertilize1st Cross:
Parentals) RRYY x rryy
Gametes) RY, RY, RY, RY
ry, ry, ry, ry
F1) 100% RrYy
2nd Cross)
Parentals) RrYy x RrYy
Gametes) RY, Ry, rY, ry
RY, Ry, rY, ry
Punnett square) RY Ry rY ry
RY RRYY RRYy RrYY RrYy
Ry RRYy RRyy RrYy Rryy
rY RrYY RrYy rrYY rrYy
ry RrYy Rryy rrYy rryy
F2) Genotype
1/16 of the progeny is expected to be RRYY2/16 = 1/8 of the progeny is expected to be RRYy1/16 of the progeny is expected to be RRyy2/16 = 1/8 of the progeny is expected to be RrYY4/16 = 1/4 of the progeny is expected to be RrYy2/16 = 1/8 of the progeny is expected to be Rryy1/16 of the progeny is expected to be rrYY2/16 = 1/8 of the progeny is expected to be rrYy1/16 of the progeny is expected to be rryyPhenotype
9/16 of the progeny is expected to be plants with round and yellow seeds R-Y-3/16 of the progeny is expected to be plants with round and green seeds R-yy3/16 of the progeny is expected to be plants with wrinkled and yellow seeds rrY-1/16 of the progeny is expected to be plants with wrinkled and green seeds rryy5. One of the most important steps to achieve a more sustainable future is to reduce a. Water conservation b. Overconsumption c. Population growth d. Both B and C
Answer:
B.
*Read the explanation plz
Explanation:
A actually increases sutainability, and C is just wrong. It's technically saying that we should not let humans be born, we shouldn't let people get pregnant, which of course no one is gonna listen to. So B is right because if we consume too many things, the next generation won't have as many resources as they need to survive.
Residents in a coastal town in Japan are hastily preparing to evacuate after an earthquake a few miles away in the
ocean. They have been warned of a tsunami headed their way. Which of the following professionals would provide this
warning?
O geochemist
seismologist
geological engineer
environmental engineer
adaptive features of Earthworm
here's your answer..
The adaptive features of Earthworm include streamlined body with no antennae or arms. The body of this organism is divided into segments.
What are the adaptive features?Adaptation can be defined as a state of the physical or the behavioral characteristics of an organism which helps them to survive better in the surrounding environment. Adaptation is essential for the survival of organisms in the new environment. These adaptations help the characteristics to become a part of the genetic makeup of the organisms.
An earthworm is a streamlined body organism with no antennae or fins or any arms or legs. The streamlined shape of the body is an adaptation to living in the narrow burrows which are present underground and the need to move easily through the soil. An earthworm has circular muscles which surround each body segment in the organism.
Learn more about Adaptation here:
https://brainly.com/question/29768035
#SPJ7
A breeder is trying to decrease the maturation time in a population of sunflowers. In this population, the mean time to flowering is 100 days. Plants with a mean flowering time of only 90 days were used to produce the next generation. If the narrow-sense heritability for flowering time is 0.2, what will the average time to flowering be in the next generation
Answer:
The next generation average time to flowering will be 98 days.
Explanation:
Before answering the question, we need to know a few concepts.
Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations. Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced. The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,SD = Xs - X₀
Heritability in the narrow-sense, h², is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.h² = R/SD
The response to selection (R) refers to the metric value gained or lost from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₀ - X₁
-------------------------------------------------------------------------------------------------------------
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
trying to decrease the maturation time in a population of sunflowers.the population mean time to flower is 100 days → X₀Chosen parental Plants mean flowering time is 90 days → Xs the narrow-sense heritability for flowering time is 0.2 → h²According to what we sow previously, we need to find out the value of X₁, which reflects the next generation average time to flowering.
We know that R = X₁ - X₀, so we need to clear this formula to calculate X₁X₁ = R + X₀
We already know that X₀ = 100 days,
Now we need to calculate R.
R = h²SDWe know that h² = 0.2,
Now we need to calculate SD
SD = Xs - X₀Xs = 90 days → Parentals media flowering time
X₀ = 100 → Population media flowering time
SD = Xs - X₀
SD = 90 - 100
SD = - 10 days
Knowing this, we can calculate R
R = h²SDo h² = 0.2
o SD = - 10
R = 0.2 x (-10)
R = - 2
Finally, once we know the R-value we can calculate the X₁ valueX₁ = R + X₀
X₁ = - 2 + 100
X₁ = 98
Why does sugar dissolve more quickly in a warm cup of coffee than in a glass of iced tea ?
Answer:
Explanation:
Sugar dissolves faster in a warmer solvent than it does in a cooler solvent because particles have more energy of movement.
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!!
Which of the following most likely explains why the chemical symbol for calcium is Ca?
a.) The symbol C was already used for carbon.
b.) The symbol was assigned by modern alchemists.
c.) Calcium is made of more than one type of atom.
d.) The element is named after the Latin word for calcium.
Answer: d.) The element is named after the Latin word for calcium.
Explanation:
Answer:
I believe it is
d.) The element is named after the Latin word for calcium.
Explanation:
Help me out pls and thanks !!!
Answer:
C
Explanation:
fungi play a major role as decomposers and recyclers in the wide variety of habitats in which they exist.
What is the relationship between Pangea and today's continents HELPPP PLEASEEEE
Answer:
Over millions of years, the continents broke apart from a single landmass called Pangea and moved to their present positions. The land and seas on Earth are constantly moving.
performed experiments using radioactively
In 1952, Alfred and Martha
labeled viruses that infect bacteria.
O Hershey, Chase
O Hershey, Crick
O Watson, Crick
Watson, Chase
1 pts
If an organism has 24 chromosomes in its somatic cells. How many chromosomes will be found in a sperm or egg (gametic) cell?
A researcher is crossing two organisms that are heterozygous for three Mendelian, unlinked traits (XxYyZz). What is the fraction of offspring that are predicted to have the genotype xxyyzz?
Answer:
the fraction of offspring that are predicted to have the genotype xxyyzz = 1/64
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
According to the question, a researcher is crossing two organisms that are heterozygous for three Mendelian, unlinked traits (XxYyZz) the fraction of offspring that are predicted to have the genotype xxyyzz = 1/64.
as the crossing over between XxYyZz * XxYyZz.
What are the 3 principles of Mendelian genetics?The fundamental principles of Mendelian inheritance by Mendel's three laws:
The Law of Independent Assortment, Law of Dominance, and Law of Segregation.Thus,the genotype xxyyzz = 1/64.
To learn more about Mendelian genetics click here:
https://brainly.com/question/25301436
If Planet Y orbits the Sun but does not rotate on its axis at all, how long would a day be on Planet Y?
A. day would be shorter than a year.
B. day would be exactly the same as a year.
C. day would be longer than a year.
D. day would be infinitely long.
Answer:b
Explanation:
In certain species of plants, the color Yellow (Y) is dominant to the color white(y). If you cross a purebred dominant mom with a dad that is recessive,
what is the probability of an offspring being white?
A 0%
B 25%
C 50%
D 75%
E 100%
Insulin is an example of a toxin that can be a useful in the prescribed amount, but deadly if an overdose is taken.
Throughout the day, activities in the liver, kidneys, and endocrine glands undergo large changes. Body temperature, blood pressure, and amino acid levels also shift from hour to hour. In fact, people tend to be more energetic and alert when these and other activities are at their highest point once a day. This is a description of Group of answer choices
Answer:
Circadian rhythms.
Explanation:
Stimulus in biology can be defined as an obvious change in either the chemical or physical structure of an organism' environment (either external or internal). All living organisms (both plants and animals) respond to changes in their environment and as such an appropriate reaction or response is made. Also, stimulus arising from within the organism is known as internal stimulus while those from its environment are known as the external stimulus.
In organisms, the specialized cells that detect stimulus are generally known as sensory receptors while a group of these receptors is referred to as sense organ.
Since both plants and animals respond to environmental stimuli, it simply means that, these living organisms have physiological cycles referred to as circadian rhythms.
Circadian rhythms is a natural internal process that controls the physical, mental, and behavioral changes in living organisms such as the sleep-wake cycle. The circadian rhythm is simply the internal body "24 hour" clock.
For example, there are large changes in the activities that happens with respect to the organs such as kidney, liver and endocrine glands within the body of living organisms throughout the day. Also, they experience timely shift in blood pressure, amino acid levels, body temperature, metabolism, etc.
Hence, living organisms are usually more energetic and at alert when the aforementioned activities and others are at their highest point once a day as a result of circadian rhythms.
what usually drives animal research is the benefit to human beings of that research?
Answer:
i dont understand what do you mean. theres a spelling mistake
Explanation:
Answer:
godly floodplain do n gjuydlugfyooguogkffigugkyfigou hkkfuuofugouogugo
If a cell has a haploid(n) number of 10, what is the diploid (2n) number
Answer:
anser is 20 thank youjnsbsb
Answer:
20
Explanation:
2n=2×10=20
thats the diploid of 10
A biology teacher takes fish, algae, pond weed, invertebrates, and bottom muck from a local pond and establishes them in an aquarium. When the system is stable, the teacher seals it into a large, airtight glass box and leaves the box in a sunny location. After three months, the organisms in the aquarium appear alive and healthy. Which of the following statements about the experiment is true?
a. During the three months, the biomass of animal life was greater than the biomass of plant life.
b. Some of the energy in the system has moved from one organism to another.
c. The air in the glass box contains no carbon dioxide.
d. No energy has entered or left the glass box.
Answer: B. Some of the energy in the system has moved from one organism to another during the three months.
Explanation:
Option A is incorrect as the biomass of plant life will be greater than that of animal life since plants are considered to be primary producers.
Option C is incorrect as the air in the glass box contains carbon dioxide which is necessary to synthesize glucose.
Option D is incorrect as energy has entered the glass box since it's in a sunny location which gives it energy from the sun.
The correct option is B "Some of the energy in the system has moved from one organism to another during the three months".
Examine the population growth curve shown below.
Which of the following most likely caused the sharp decline in population at point B?
A.
disease
B.
overpopulation
C.
emigration of a competing species
D.
a shortage of food
Answer:
I believe the answer is A: disease
a. una
b.scapula
c.sterum
d.clavicle
Answer:
It is Sternum
Explanation:
The sternum or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major blood vessels from injury.
Circle FIVE keywords associated with transport of water and minerals in plants
Answer:
1) Suction
2) Root pressure
3) Transpiration
4) Xylem
5) Phloem
Explanation:
Answer:
XYLEM
TRACHEID
SUCTION
ROOT PRESSURE
TRANSPIRATION
Explanation:
how does Sexual reproduction leads to genetic variation.
Answer:
Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms. ... Sexual reproduction involves meiosis, which is the process of a cell doubling its DNA, shuffling its genes, and then dividing the shuffled DNA among four cells.
In order for a protein to be an integral membrane protein it would have to be which of the following?
Answer:
Integral membrane proteins
Explanation:
also called intrinsic proteins, have one or more segments that are embedded in the phospholipid bilayer. Most integral proteins contain residues with hydrophobic side chains that interact with fatty acyl groups of the membrane phospholipids, thus anchoring the protein to the membrane.
When a person undergoes gastric bypass surgery, can their hunger, appetite, and
satiety cues change?
Answer:
Yes
Explanation:
Yes, after an individual undergoes gastric bypass surgery many different metabolic hormones become affected by the surgery. Such hormones include Gherlin, Leptin, Gastrin, and Insulin, all of which can affect the individual's hunger, appetite, and satiety cues. This is mainly because the surgery greatly shrinks the amount of food that an individual can eat at any given time. Since it basically shrinks the stomach by creating a small pouch where food enters and goes straight into the intestinal track it gives the individual the feeling of being full with much less food.
What is the answer to this question
help please!! much appreciated
What species are currently evolving for aquatic environments?
Answer: Hello Luv.......
How whales and dolphins evolved for life at sea ... important ways to allow these animals to transition from terrestrial to aquatic environments.
Explanation:
From tropical corals to tawny owls, some species are already being pushed to ... For instance, an experiment growing brewer's yeast in environments with deadly ... Before there was "Climate Change" there was STILL evolution. ... and Horses Dig Wells That Provide Water for a Host of Desert Species.
Hope this helps.
Mark me brainest please...
Anna ♥
Which structure produces blood cells?
Answer:
Blood cells are produced in the bone marrow of the body more specifically they become blood cells from first being stem cells which then divide until they reach a mature red blood cell stage. ( or other types of cells, stem cells are like the blank template for either red blood cells, white blood cells, or platelettes.)
Explanation:
why do prevailing winds and positions of islands cause warm ocean currents to pass Christchurch in normal years
Prevailing winds and positions of islands cause warm ocean currents to pass Christchurch in normal years for the following reasons:
The prevailing winds in the region are generally from the southwest.The position of islands such as New Caledonia and Norfolk Island can also influence the movement of warm ocean currents in the region. In the case of Christchurch, there are a few reasons why warm ocean currents tend to pass by the region in normal years:Warm ocean currents are typically driven by prevailing winds, oceanic currents, and other factors such as the shape of coastlines and the positions of islands.
The prevailing winds in the region are generally from the southwest. These winds blow parallel to the coastline, which means that warm ocean currents are deflected away from the shore and towards the east. As a result, the waters off the coast of Christchurch are generally cooler than those further north or northeast. The position of islands such as New Caledonia and Norfolk Island can also influence the movement of warm ocean currents in the region. These islands help to direct the flow of warm water towards the Coral Sea and the Tasman Sea, rather than towards the coast of New Zealand. This means that Christchurch, which is located on the eastern coast of the South Island, is less likely to experience the effects of warm ocean currents.Note: That oceanic currents and winds can be affected by a range of factors, including El Niño and La Niña events, which can cause changes in sea surface temperatures and alter the path of ocean currents. As a result, there may be some years when warm ocean currents do reach Christchurch, even if this isn't typically the case in normal years.
Learn more about ocean currents on
https://brainly.com/question/21654036
#SPJ1
4.
Which one of the following is not a simple sugar?
A. Glucose.
B. Galactose.
C. Fructose.
D. Sucrose
[tex]——————————————————————[/tex]
[tex] \huge \mathbb{ANSWER}[/tex]
[tex]——————————————————————[/tex]
4. Which one of the following is not a simple sugar?
D.SucroseGlocuse, Fructose, and Galactose are simple sugars.
[tex]——————————————————————[/tex]
#Hope it helps!
Sucrose is not a simple sugar because it is made up of both glucose and fructose so sucrose is called a disaccharide. Therefore, option (D) is correct.
What is simple sugar?A monosaccharide, often known as a simple sugar, is a form of carbohydrate that cannot be broken down into smaller molecules of glucose and is thus readily absorbed by the body.
There are three primary kinds of simple sugars: glucose, fructose, and galactose. All of these sugars have the same chemical composition, but their structures are quite different from one another.
Sucrose on the other hand is a disaccharide composed of both glucose and fructose. Therefore, it is not a simple sugar and can be broken down into smaller or simpler molecules.
Learn more about simple sugars, here;
https://brainly.com/question/984360
#SPJ2