In pea plants yellow seeds are dominant to green seeds. A plant with green seeds cross at the plant that is heterozygous.
What are the alleles?
What are the genotypes of the parents?
What are the F1 genotypes?
F1 phenotypes?
Answer:
The correct answer is -
1. Y (yellow) and y (green)
2. Yy (yellow dominant) and yy (green)
3. Two heterozygous yellow (Yy) and two green recessives (yy)
4. 50% Yellow and 50% green plant
Explanation:
In the given question, it is given that a pea plant has two alleles for the trait yellow seeds and green seeds, the alleles for the traits are green (y) and Y for the dominant trait.
The cross between the green seed (yy) pea plants, is recessive and heterozygous which means a combination of dominant and recessive are as follows:
Y y
y Yy yy
y Yy yy
Here two heterozygous yellow seeds and two recessive green seed plant offspring.
Write a hypothesis for the experiment below.
Answer:
Hypothesis: I predict that the plant with blue cellophane will demonstrate prolific growth compared to its counterpartsWhen hydrogen is broke down what 2 substances are created
When hydrogen is broke down 2 isotopes of hydrogen are created.
Why is hydrogen present in combined form?When atoms of the same or different types combine, molecules form. As a result, two Hydrogen atoms join together to form a Hydrogen molecule.
Hydrogen is mostly found in the combined state, such as water, rather than in the free state.
An atom of hydrogen, on the other hand, rarely exists on its own because its unpaired electron is always looking for a partner. Hydrogen in its molecular form is more common.
Each hydrogen isotope contains only one proton, but they differ in the number of neutrons in their atoms.
Because of the extra neutrons, the isotopes become heavier: deuterium is twice as heavy as ordinary hydrogen (also known as protium), and tritium is three times as heavy.
Thus, isotopes of hydrogen, i.e., protium and deuterium will be created.
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If solution A has a pH of 2 and solution B has a pH of 8, which of the following statements is true?
a.A has a greater [OH-] than B.
b. A is acidic and B is basic.
C.A is a base and B is an acid.
d.None of these
e. A is basic and B is acidic.
Answer: b. A is acidic, B basic
Explanation: pH 7 is neutral, with equal H+ and OH-
pH is -log(H+ Molar Concentration) and at pH7, H+ and OH- are both at a concentration of 10^-7
A more acidic solution has more H+ than OH-, so it is a higher concentration than 10^-7 and therefore pH lower than 7. Conversely, a pH>7 means a higher concentration of OH- and lower concentration of H+
Considering the definition of pH, the correct statement is option b. A is acidic and B is basic.
You need to know that pH is the Hydrogen Potential. It is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
Mathematically, pH is calculated as the negative base 10 logarithm of the activity of hydrogen ions:
pH= - log [H⁺]
The scale has values ranging from 0 to 14, with pH 7 being the neutral solution. Solutions with pH less than 7 are acidic and alkaline (basic) those with pH greater than 7.
Then, being the pH of solution A equal to 2, being less than 7, the solution is acidic. On the other hand, the pH of solution B is 8. As the pH is higher than 7, solution B will be basic.
So, finally, the correct statement is option b. A is acidic and B is basic.
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What is an example of an extrusive land forms
Answer:
Extrusive landforms are formed from material thrown out to the surface during volcanic activity. The materials thrown out include lava flows, pyroclastic debris, volcanic bombs, ash, dust and gases such as nitrogen compounds, sulphur compounds and minor amounts of chlorine, hydrogen and argon.
Explanation:
here hope it helps
What are some examples of metabolic processes in cells? (Choose all that apply)
Answer:
Metabolism is a set of chemical reactions that they release energy for cellular processes.
Explanation:
Metabolic processes in cells are:
* Metabolism-the whole of all chemical processes, that is, the total turnover of matter and energy is called metabolism.
* Cellular respiration-a process in which organic matter is oxidized, whereby carbon dioxide, water, and energy in the form of ATP molecules are formed as end products of this oxidation.
Some conifers lose their needles seasonally, just as deciduous trees do.
True
False
Cholesterol is an important biomolecule precursor for hormones. What functional group(s) are present
Answer:
Hydroxyl group, carbon group
Explanation:
This is because cholesterol is a lipid that has four linked hydrocarbon group called sterol. The sterol is the hydroxyl group which form hydrogen biynd with the neighbouring carbonyl oxygen of phospholipids head.
Cholesterol is found in the cells if the body and it is a precursor for producing vitamin D and steroids hormones like aldosterone, cortisone e.t.c
1) Which feature in cnidarians is the strongest indicator that they are more complex than sponges?
They have the ability to reproduce sexually.
They have the ability to attach to surfaces.
They have a medusa body form.
They have nerve cells.
The answer is "They have nerve cells". Edge. 2021
Answer:
-They have the ability to reproduce sexually.
Explanation:
Answer:
They have the ability to reproduce sexually.
Explanation:
I took it
During a chemical reaction bonds that hold atoms together may be broken or formed is it true or false
Answer:
ko
Explanation:
okok
Answer:
true
Explanation:
by what factor would the rate of diffusion across a membrane change if both its area and thickness doubled
Answer:
Size of particle.
Explanation:
Size of the particles that are diffusing is the factors that greatly affect the rate of diffusion. The rate of diffusion decreases if the thickness of the membrane becomes doubled while on the other hand, if the surface area of the membrane increases it doubled the rate of diffusion of the cell. If the size of particles is very small so it will diffuse if the membrane has double thickness.
Some microorganisms have enzymes capable of catalyzing reactions that are difficult or unfeasible by standard industrial chemical treatments. What process takes advantage of these microbes' abilities, by growing the them in the presence of the enzyme's substrate, allowing the microbe to catalyze the step needed to produce some industrial products
Answer:
Metabolic Engineering
Explanation:
Metabolic engineering refers to the process of modifying the genetic and enzymatic processes within cells in order to optimize the output of products. When constraints are noticed in the normal biological process, scientists endeavor to modify the constraints so that wide scale production can be realized.
Examples of processes that incorporate this technique are beer, cheese, wine and some drugs production.
why is the skin considered as the first line of defense of our body against microorganisms
Answer:
Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens. You have beneficial bacteria growing on your skin, in your bowel and other places in the body (such as the mouth and the gut) that stop other harmful bacteria from taking over..
Explanation:
when a microorganism comes towards us, its the first thing they come in contact with- our skin.
Organisms that may be part of the normal bacterial flora, but can--under certain conditions--cause disease are known as ____________ pathogens. g
Answer:
Bacteria pathogens.
Explanation:
This is because bacteria pathogens are single celled organisms that can cause diseases. Though many bacteria do not cause disease but the pathogenic bacteria have the ability to cause infections and become harmful to their host. Bacteria tend to adapt to their environment and they can turn pathogenic if the immune response of the host eventually become environment , it becomes pathogens. Examples of bacteria pathogens are salmonella, E.coli, listella e.t.c.
Assume that you now study a third gene having alleles C and c. For each genotype, what type(s) of gametes will be produced
Complete question:
One gene has alleles A and a. Another has alleles B and b. Assume that you now study a third gene having alleles C and c. For each genotype, what type(s) of gametes will be produced
a. AABBCC
b. AaBBcc
c. AaBBCc
d. AaBbCc
Answer:
a. ABC
b. ABc, aBc
c. ABC, aBC, ABc, aBc
d. ABC, ABc, AbC, Abc, aBC, abC, aBc, abc
Explanation:
We have three genes that are not linked. Each gene can be in a dominant form or a recessive form. (A and a, B and b, C and c). Gametes are haploid sexual cells, n, meaning that they have half of the genetic material of a diploid cell. When two gametes get together, they form a diploid cell, the zygote.
As these genes are not linked, they segregate independently from each other. According to this, we can assume different allele combinations of these genes that form the gametes.
To know what kind of gametes might be formed from these genotypes, we just need to think about all the possible combinations according to the alleles of each gene. A gamete needs to have one allele of each gene.
An easy way to do so is to analyze genes separately and the possible combinations.
Genotype Possible alleles combination Gametes
a. AABBCC A----B----C ABC
In this genotype, there are only dominant alleles for each gene, so there is only one possible combination of alleles. A with B and C
b. AaBBcc A----B----c ABc
a----B-----c aBc
For this genotype, gene A has the dominant allele and the recessive one (A and a, respectively). Gene B has only dominant alleles (BB), and gene C only recessive alleles (cc). So we have two possible allele combinations: "A" with "B" and "c", and "a" with "B" and "c".
c. AaBBCc A----B-----C ABC
A----B-----c ABc
a-----B-----C aBC
a-----B-----c aBc
For this genotype, gene A has the dominant allele and the recessive one (A and a, respectively). Gene B has only dominant alleles (BB), and gene C has the dominant allele and the recessive one (C and c, respectively). So we have four possible allele combinations: "A" with "B" and "C", "A" with "B" and "c", "a" with "B" and "C", and "a" with "B" and "c".
d. AaBbCc A----B----C ABC
A----B-----c ABc
A-----b-----C AbC
A----b-----c Abc
a----B-----C aBC
a----B------c aBc
a-----b-----C aBC
a-----b-----c abc
This is a complete heterozygous genotype, which means that we have two options for each gene: the dominant allele and the recessive one. We have eight possible allele combinations.
The air is less dense at higher altitude how does this affect climate
melting wax, evaporating gasoline, freezing water.
These changes are examples of
A) nuclear changes.
B) physical changes.
C) chemical changes
D) energy consumption
Answer: These changes of state are physical changes
Explanation: changes between gas, liquid and solid phases do not alter the chemical or atomic state. Ice, water and water vapour all have the chemical formula H2O.
What is the movement of air during the day where land and water meet?
Answer:
from water to land
Explanation:
during the day a land has higher temperature than water so the air is lighter on land and makes space for heavier one from water. that's why the air moves from water to land
the movement of air during the day from water to land
what are the properties of water ?The physical property of Water are, it is a colorless and tasteless liquid, have extensive hydrogen bonds resulting in unusual properties in the condensed form.
This also have high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment, etc.
Water is a great solvent and helps in the transportation of ions and molecules required for metabolism, has high latent heat of vaporization helps in the regulation of body temperature.
It is Amphoteric nature can act as both acid and base means that it is amphoteric in nature, it is Electropositive elements which reduce water to hydrogen molecule and it is the source of hydrogen.
during the day a land has higher temperature so the air is lighter on land and makes space for heavier one from water, hence the air moves from water to land
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True or false: A selective force (such as antibiotics) must be present for DNA mutations to occur. Group starts
Answer: False
Explanation:
Roses have 70 chromosomes in their body cells, After Meiosis, how many chromosomes would rose eggs/sperm have?
Answer: 35 chromosomes
Explanation: somatic cells are diploid, gametes are haploid, so the gametes will have 35 chromosomes.
How do enzymes affect substrates?
Answer:
Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur. The enzyme will always return to its original state at the completion of the reaction.
Which of the following would increase the density of an object?
decrease mass and increase volume
O increase mass and increase volume
decrease mass and decrease volume
increase mass and decrease volume?
Which of the following would increase the density of an object?
Answer:Increase mass and decrease volume
#CARRYONLEARNING #STUDYWELLis competition abiotic or biotic?
Answer:
competition would be biotic if it were living or breathing
Explanation:
biotic means it lives, like plants or humans. abiotic means it doesnt live or breath, like a rock. i hope this helped
Competition is a biotic relationship that can have a substantial impact on populations of organisms.
What is meant by biotic? Biotic and abiotic factors are what make up ecosystems. Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere. The way these components interact is critical in an ecosystem.Competition is a biotic relationship that can have a substantial impact on populations of organisms.
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The Scarlet King Snake is a non-poisonous snake. It intentionally looks like the poisonous Eastern Coral Snake in order to scare away predators. What is this type of animal adaptation called?
A) camouflage
B) hibernation
C)migration
D) mimicry
Answer:
mimicry
Explanation:
Mimicry, in biology, phenomenon characterized by the superficial resemblance of two or more organisms that are not closely related taxonomically. This resemblance confers an advantage—such as protection from predation—upon one or both organisms by which the organisms deceive the animate agent of natural selection.
okay, the answer is D. mimicry. i mean- think about it: it cant be camouflage because like- camaflouge is where they hide like the stick bug. the stick bug camouflages into the tree. like- the stick bug has the same detail, looks like the tree. so it cant be camouflage. it cant be hibernation because snakes dont hibernate only fur animals do. snakes have scales. it cant be migration because only insects like butterflies, birds, and so on, only they migrate. snakes dont have wings. now we are left with D. if you think its A or D it can be but its D i got an A+ on my test with this question.
Someone answer 8 pls
Answer:the first one
Explanation:
Describe how the Punnett square is a mathematical model for predicting
outcomes of inheritance patterns.
Answer:
Punnett squares are used to show all of the combinations of alleles that might result from across and the likelihood that each might occur.
Explanation:
Punnett squares are diagrams used by biologists to determine the probability that offspring have a particular trait. The creation of Punnett Square and its use to determine the characteristics of offspring is called the performance of the cross.
The crosses in Punnett Square are based on meiosis, a biological process in which parents transmit alleles to gametes, which they later pass on to their offspring. Each parent has two alleles for the trait and passes one to their offspring. Each offspring completes a total of two alleles, one from each parent.
2. Why is hydrogen placed in group one of the periodic table?
Answer:
because, it resembles the properties of alkali earth metals as well as halogens ! OwO
Explanation:
" Hydrogen resembles the properties of alkali earth metals as well as halogens. Hydrogen has one electron in its valence shell and it also needs one more electron to get stable. ... For this the hydrogen is placed separately in periodic table ! "
P.s: sharky said thanks for the points !
2. While gazing into an aquarium, you see bubbles coming from an aquatic plant . What are the bubbles
Answer:
oxygen bubbles
Explanation:
These bubbles are oxygen bubbles that are being produced by the aquatic plants at the bottom of the aquarium. As oxygen usually does it floats to the top of the water and back up into the atmosphere. This happens because of the photosynthesis process in which the plants soak up sunlight and carbon dioxide and uses it to produce and release oxygen. Since this process happens underwater for the aquatic plants the oxygen become bubbles and float up.
what is a flagship species?
Answer:
In conservation biology, a flagship species is a species chosen to raise support for biodiversity conservation in a given place or social context.
Explanation:
I just know ig ...
Answer:
an flagship species is a specie as to act as an ambassador
Explanation:
How much work is required to pull a sled 5 meters if you use 50N of force?
Answer:
250N/m
Explanation:
Work is Force multiplied by Displacement.
Multiply 5 by 50 and you get 250N/m
*Note: N is newtons and m is meters.