Answer:
in soft to have to ?
Explanation:
i just searched it
In the garden pea, several different genes affect pod characteristics. A gene affecting pod color (green is dominant to yellow) is approximately 7 mu away from a gene affecting pod width (wide is dominant to narrow). Both genes are located on chromosome 5. A third gene, located on chromosome 4, affects pod length (long is dominant to short). A true-breeding wild-type plant (green, wide, long pods) was crossed to a plant with yellow, narrow, short pods. The F1offspring were then testcrossed to plants with yellow, narrow, short pods. If the testcross produced 800 offspring, what are the expected numbers of the eight possible phenotypic combinations
Answer:
Green/Wide/Long, G-W-L- = 186 individuals Yellow/narrow/ long, gg ww L- = 186 individuals Green/wide/ short, G-W-ll = 186 individuals Yellow/narrow/ short, gg ww ll = 186 individuals Green/narrow/ long, G-wwL- = 14 individuals Yellow/wide/ long, gg W-L- = 14 individuals Green/narrow/short, G-wwll = 14 individuals Yellow/wide/ short, ggW- ll = 14 individualsExplanation:
Available data:
• One gene affecting pod color (green is dominant to yellow)
• One gene affecting pod width (wide is dominant to narrow)
• Both genes are located on chromosome 5 and approximately 7 mu away from each other.
• A third gene, located on chromosome 4, affects pod length (long is dominant to short).
• Cross: A true-breeding wild-type plant (green, wide, long pods) was crossed to a plant with yellow, narrow, short pods.
• The F1offspring were then test-crossed to plants with yellow, narrow, short pods.
• The testcross produced 800 offspring.
Cross 1:
Parental) GGWWLL x ggwwll
F1) GgWwLl
Cross 2:
Parental) GgWwLl x ggwwll
F2) N=800
To calculate the numbers of the F2 generation, we first need to calculate the frequencies of recombination and parental of the linked genes. We know that they are 7MU apart from each other. The map unit is the distance between a pair of genes for which every 100 meiotic products one results in a recombinant one.
MU = 7 means that there is 7% of recombination for genes that express color and width. This is:
MU = 7 = 7% recombination
We have two possibilities of recombination: green/narrow and yellow/wide. Each of these recombinants has half of the possibilities of occurring, so:
7 map units = 7 % of recombination in total
= % Gw + % gW
= 3.5 % + 3.5 %
Gw = 3.5% = 0.035
gW = 7%/2 = 0.035
For the parentals, we can calculate
100% - 7% = 93% of parental in total
= % of GW + % gw
= 46.5% + 46.5%
GW = 46.5% = 0.465
Gw = 46.5% = 0.465
The length gene is located in a different chromosome so it assorts independently. This is, of the gametes will be long, L, and the other 50% will be short, l.
L = 50% = 0.5
L = 50% = 0.5
Now we need to figure out how to relate these frequencies. All we need to do is to multiply the frequencies of occurrence obtained previously for linked and independent genes, for each possible phenotype. This is:
Green/Wide, GW = 0.465 Yellow/narrow, gw = 0.465 Green/Narrow, Gw = 0.035 Yellow/Wide, gW = 0.035 Long, L = 0.5 Short, l = 0.5Phenotypic frequencies:
Green/Wide/Long, G-W-L- = GW x L = 0.465 x 0.5 = 0. 2325 Yellow/narrow/ long, gg ww L- = gw x L = 0.465 x 0.5 = 0. 2325 Green/wide/ short, G-W-ll = 0.465 x 0.5 = 0. 2325 Yellow/narrow/ short, gg ww ll = 0.465 x 0.5 = 0. 2325 Green/narrow/ long, G-wwL- = 0.035 x 0.5 = 0.0175 Yellow/wide/ long, gg W-L- = 0.035 x 0.5 = 0.0175 Green/narrow/short, G-wwll = 0.035 x 0.5 = 0.0175 Yellow/wide/ short, ggW- ll= 0.035 x 0.5 = 0.0175Finally, as we need to obtain the numbers of the individuals with those phenotypes, we need to multiply each frequency by N, which is the total number of individuals in the F2 (N = 800).
Green/Wide/Long, G-W-L- = 0. 2325 x 800 = 186 individuals Yellow/narrow/ long, gg ww L- = 0. 2325 x 800 = 186 individuals Green/wide/ short, G-W-ll = 0. 2325 x 800 = 186 individuals Yellow/narrow/ short, gg ww ll = 0. 2325 x 800 = 186 individuals Green/narrow/ long, G-wwL- = 0.0175 x 800 = 14 individuals Yellow/wide/ long, gg W-L- = 0.0175 x 800 = 14 individuals Green/narrow/short, G-wwll = 0.0175 x 800 = 14 individuals Yellow/wide/ short, ggW- ll = 0.0175 x 800 = 14 individuals
During moderate intensity exercise, most of the ATP used for muscle contraction is formed by?
Answer:
Aerobic cellular respiration
Explanation:
Aerobic cellular respiration is the process by which your cells generate energy (ATP) from glucose (sugar from food) and oxygen. Since this exercise activity is only moderately intense, you are getting plenty of oxygen, and this is how your muscles will generate energy.
Hope this helps!!
which animal has blue blood ??
Answer:
spiders
Explanation:
While humans and many other species have red blood, due to the iron in their hemoglobin, other animals have different colored blood. Spiders(as well as horseshoe crabs and certain other arthropods) have blue blood due to the presence of copper-based hemocyanin in their blood. Some animals, such as the sea cucumbers, even have yellow blood.
Answer:
The octopus has blue blood
Explanation:
Which of the following is associated with areas of karst topography?
A.sinking streams
B.caverns
C.all of the above
D.sinkholes
Answer:
C
Explanation:
Karst is a Topography formed with rocks. All 3 contain it
Why do you think cartilage and not bone connects the two os coxae in the front?
A cartilage is used to connect two os coxae in the front because it resists tensile, shearing and compressive forces and is capable of a small amount of movement under physiological conditions.
Functions of cartilaginous jointsJoints are areas where two or more bones articulates. There are different types of joints which include:
Fibrous jointscartilaginous joints andsynovial joints.Cartilaginous joints allows more movement than a fibrous joints. They are found between the two os coxae bones of the hip because
It is capable of resisting tensile and compressive forces, andit is capable of small amount of movement under physiological conditions such as during labour.Learn more about joints here:
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Enzymes speed up reaction rates by changing...
activation energy.
hydrogen bonds.
pH.
substrates.
Enzymes usually speed up the reaction by changing activation energy. The correct option is A.
What is activation energy?In chemistry, activation energy is the minimum amount of energy to activate molecules or atoms to the point where they can cause chemical transformation or accessible and usable.
Heating is generally the source of activation energy, with reactant molecules absorbing thermal energy from their surroundings.
The activation energy is determined by the nature of the chemical transformation, not by the relative energy states of the reactants and products.
As the temperature rises, molecules will move and collide more frequently. Additionally, the molecules carry more kinetic energy.
As a result, as temperature rises, so does the proportion of collisions that can overcome the activation energy of the reaction.
Enzymes typically accelerate reactions by changing the activation energy.
Thus, the correct option is A.
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Nuclear power plants have a _____, net energy Yield.
A: Low
B: Increedibliy high
C: Very high
D: almost zero
Answer: A: Low
Explanation: Nuclear power has a low net energy yield because large amounts of energy are needed for each step in the nuclear power fuel cycle.
Answer and I will give you brainliest
Answer:
Hope this helped enjoy your day or night
Explanation:
1. Muscles move tendons attached to bone by performing an action called _______.
2. Myosin and ______ are two proteins that interact to contract muscles.
3. _______ connect muscles to bones.
4. The layer of skin that grows new cells rapidly is called the _______.
5. The _______ is the layer of skin that regulates body temperature.
6. _______ can occur when pores become clogged with dirt or oil, or become infected.
7. Explain what happens at a microscopic level inside a muscle fiber during contraction, beginning with the nerve impulse.
1. Contraction
2. Actin
3. Tendons
4. Epidermis
5. Dermis
6. Acne
7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.
For Penn Foster.
Answer:
1. Contraction
2. Actin
3. Tendons
4. Epidermis
5. Dermis
6. Acne
7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.
Explanation:
pppp
Which of the following muscles adducts the arm?
O A. deltoid
O B. sternocleidomastoid
O C. latissimus dorsi
O D.subscapularis
O E. serratus anterior
Answer:
c
Explanation:
Adduction is accomplished primarily by the pectoralis major, latissimus dorsi, teres major, triceps, and coracobrachialis.
Which sentence best describes evolution?
Changes in genetic structure of a population occur over time.
Individuals inherit different characteristics.
Populations remain unchanged over time.
An individual grows and changes during its lifetime.
Answer:
changes in genetic structure of a population occur over time.
Explanation:
cuz that's how evolution be working
The option (A) is correct. The best sentence best describes the evolution is changes in genetic structure of a population occur over time.
What is evolution?Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.
Moreover, evolution is the change in heritable traits of biological populations over successive generations. Evolutionary processes give rise to diversity at every biological organization level. All life on earth shares a common ancestor known as the last universal ancestor.
Therefore, evolution is important because it explains how life developed on Earth and how different species are connected. The evolutionary linkages aid in the addressing of biological challenges, as well as the diversity of life.
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Which fossil fuel is primarily composed of methane?
A: Petroleum
B: Coal
C: Natural gas
D: Geothermal Energy
Answer:
The answer is C.) Natural gas
Explanation:
Natural gas is a concoction of hydrocarbon-rich gases. It is formed deep within the crust of the earth. The most prevalent component of natural gas is methane, a molecule containing one carbon atom and four hydrogen atoms (CH4). This is the energy that is utilized to heat and power homes, businesses, automobiles, and factories. I hope this helps! ^-^
A China rose plant has 68 chromosomes. State the number of chromosomes
i) in the cells of its sepal
ii) in its germ cells
I) species ranging between 2n=2x=14 and 2n=8x=56
ll) 36,377
A China rose plant has 68 chromosomes the number of chromosomes. Number of chromosomes is the no. of polyploid and disploid group.
i) in the cells of its sepal is calculated by the 2n= 2x=14 and2n= 8x=56.
ii) in its germ cells the number of chromosomes= 36, 377.
What is chromosomes?Chromosomes are thread-like systems positioned within the nucleus of animal and plant cells. Each chromosome is made from protein and a molecule of deoxyribonucleic acid (DNA).
Thus it is clear that the number of chromosomes are welly known.
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Which of the following is not a function of the stem A. Supports the leaves B. Helps transport sugar and water C. Pollination D. Germination E. Both C and D
Answer:
I am almost positive it is C pollination
Explanation:
If you were thinking that it might be E, its not because the stem does help with germination.
The occipital lobe is the largest lobe in the human brain.
t or f
Answer:
False
Explanation:
The frontal lobe is the largest lobe
Answer:
FALSE
Explanation:
>:)
What is a membranous organelle?
I also need advice on something else, see comments.
Answer:
membranous organelles are cytoplasmic organelles that posses a bounding membrane of their own and they include cell membrane, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes.
Explanation:
:3 hope this helped
RNA is sometimes the genetic material in ______________.
Answer:
RNA viruses
Explanation:
have genome composed of RNA that encodes a number of proteins.
7.
Two of the following statements are false. Circle the letter and fix the statement to make sense
a. Enzymes are NOT used up by a chemical reaction
b. Enzymes help to speed up chemical reactions
C. Enzymes are made up of proteins
d. Enzymes are needed for a chemical reaction to occur
Humans depend on plants to carry out specific functions that are
required to sustain life. Like many multicellular organisms, plants
contain organs that help them to perform those specific functions.
Which of the following correctly pairs a plant organ with its
function?
A.
The roots of plants absorb the water used in the process of
photosynthesis.
B. Plant stems store carbon dioxide that is used in the process of
photosynthesis.
C.
The petals of flowers capture the light energy used during the
process of photosynthesis.
D. The guard cells in leaves absorb the nutrients that are used to
fuel the process of photosynthesis.
Answer:
its A, the roots of plants absorb the water used in the process of photosynthesis
Answer:
The correct anwser is A!
Explanation:
I am currently taking a test with the same question and got it right
what type of molecule is oil
a.carbohydrate
b.lipid
c.protien
d.enzyme
Answer:
b.lipid
Explanation:
In 5-6 sentences, explain the difference between genotype and phenotype. How can mutations be harmful or beneficial?
A mineral used as a building material is?
halite.
sulfur
calcite
platinum
Answer:
Calcite is used in limestone
Explanation:
in dna, the 3' carbon on the surgar of one necleotide is attached to the 5' carbon on the sugar of the next nucleotide by a
Answer:
Phosphodiester bond
Explanation:
The question is essentially asking what is the name of the bond that connects nucleotides.
Nasolacrimal duct opens into
a) Anterior part of inferior meatus.
b) Vestibule of nose.
c) Middle meatus.
d) Superior meatus
Answer:
a) Anterior part of inferior meatus.
Explanation:
The inferior meatus is the largest of the three. It lies below the inferior concha and above the nasal cavity. It extends most of the length of the nasal cavity's lateral wall. It is broader in the front than at the back, and presents anteriorly the lower orifice of the nasolacrimal canal.
# Jerry Don is here#
Answer:
Anterior part of inferior meatus
Explanation:
A diagram has been attached to let you make clear
Some people think that the immigrants in this photograph are serious. This is best shown in their
A. actions.
B. possessions.
C. expressions.
D.clothing.
Answer:
actions
Explanation:
Answer:
A.
Explanation:
i think the right answer is A.actions. i hope i helped!
explain how the xylem vessel is adapted to it's function.
What is the tree of life and how does it relate all living things according to Aristotle words
Answer:
palm oil
Explanation:
they use palm oil to prepare food I'm also used to to prepare alcohol drink.
Question 2 of 10 Which of the following statements is NOT true? A. Mutations are not part of evolution. B. Mutations can be beneficial. C. Mutations can be harmful. D. Mutations are important to evolution. Reset Selection
Answer:
The answer is A
Explanation:
The statement that is not true is option A i.e., mutation are not part of evolution.
What is mutation?A mutation is an alteration in an organism's DNA sequence. Mutations can occur as a result of missteps in DNA replication during cell division, mutagen exposure.
Mutation can be takes as engine that drives evolution as it generates genetic variation.
Thus, the correct option is A.
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Explain the disadvantages and advantages of each type of cell division.
Answer:
advantage-this is the final separations of the already duplicate molecular units, involving chromosomal assortment and cytoplasm decisions. all eukaryotic cells undergo mitotic decision while gemetes undergo meiotic division
The advantages of mitotic division:
It provides growth and development of the body.Dead cells of the body are removed or replaced.It mediates the equal distribution of chromosomes. Repair of the body takes place by the addition of new cells. What are the disadvantages of mitosis?The disadvantage of mitosis is that it involves a little genetic variation among the cells which induces the risk for the same diseases or disorders that are already occurred in the existing cells.
The advantages of the meiotic division:
It increases the genetic variations in the population of organisms from one generation to the next. Gametes are produced by meiosis.The disadvantages of the meiotic division:
It lacks the pace at which an organism can divide.It always requires two gametes.Therefore, it is well described above.
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What part of the brain has been linked to dissociative identity disorder?
A. Cerebellum
B. Amygdala
C. Hypothalamus
D. Hippocampus
Answer:
There are two answers. option B and D
Explanation:
hope this helps.