A particular plant has two alleles that control the length of its stem. T represents the dominant allele that codes for a tall stem, and t represents the recessive allele that codes for a short stem. Based on the Punnett squares, which two statements are true about the genotype of the plant’s stem length?
First Generation
__t_ t
T Tt Tt
T Tt Tt
Second Generation
__T_ t
T TT Tt
t Tt tt
Select all the correct answers.
A) Plants with short stems are homozygous for that trait.
B) Plants with tall stems are always homozygous for that trait.
C) Both parent plants in the second generation are heterozygous.
D) Both parent plants in the second generation are homozygous.
The correct answers are options A and C.
How, explain your answer briefly?The Statement A says that the plants, which have a short stem is homozygous for the trait. According to the question, the allele for the short height is recessive. A recessive trait can only be observed, when the dominant allele is not at all present. Hence, the plant must have tt allele, so, the plant having short stem would be homozygous recessive.
The statement C says that the both parents in second generation are heterozygotes. It is given that the parents in the second generation have aa genotype Tt. In this case, both the alleles are different, hence, the parent plants are heterozygotes.
Thus, this could be the answer.
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describe sources of environmental variation ?
Answer:
they are climate, food supply, and actions of other organisms.
These protein-based substances enhance digestion by making chemical reactions more likely to happen. group of answer choices bile emulsifiers enzymes hormones
Answer:
The answer is enzymes..
Suggest why glucose is converted to glycogen rather than kept as glucose inside the cells
Explanation:
after a main glucose and the liver and level of blood glucose rise this successful course is guilt with by the glucose lenses which is the liver Converse glucose into glycogen for storage the glucose that is not stole is used to produce energy by a process called glycolysis
Monotheism is
a religion that believes in many gods.
an agnostic position toward the existence of god.
religion that believes in the existence of one god.
a belief that god does not exist.
In which of the following ways did Rome limit the consuls' power?
A. Consuls held unlimited power.
B. The consuls served for only one year terms.
C. Consuls were forced to leave Rome for four years following their terms as consul.
D. Consuls were chosen by lot.
Answer:i believe the answer was D
Explanation:i think it is
how are fruit and vegetable made available in the off season?
Out of season fruit has either been imported from another country or grown in heated greenhouses. Either way, excess carbon emissions are created.
Mark as brainlest answer (✯ᴗ✯)Answer:
Fruit And Vegetables out of season are mostly brought from other countries in most of the places
Explanation:
Hope It Helps!!
What provides the carbon atoms that are incorporated into sugar molecules in the calvin cycle?.
The answer of this query is discussed below:
What do you mean by the Calvin cycle?The Calvin cycle converts airborne carbon molecules directly into plant material. Because plants are the foundation of the energy pyramid in most ecosystems, the Calvin cycle is crucial to their survival.
The carbon atoms needed for photosynthesis to create sugars are found in carbon dioxide. RuBP is initially combined with carbon dioxide, and RuBP is then renewed to complete the Calvin cycle.
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A scientist discovers an unknown multicellular organism with an endoskeleton.
Which kingdom does the organism most likely belong to?
Protista
Plantae
Animalia
Archaea
The unknown multicellular organism with an endoskeleton most likely belongs to the kingdom Animalia. Thus, the correct option is C.
What is Kingdom?Kingdom may be defined as a taxonomic classification of the second-highest rank, just below the domain and above the phylum.
Endoskeleton is found in the kingdom Animalia and refers to the skeletons which are present inside the body of the organisms that provide structural support and protection and assist them in migration.
Therefore, the correct option is C.
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Which statements describe how traits are inherited? Check all that apply.
An offspring always receives different alleles from each parent.
An offspring always receives the same alleles from each parent.
An offspring can receive different alleles or the same alleles from each parent.
Traits are inherited when proteins are passed from parents to offspring.
Traits are inherited when genes are passed from parents to offspring.
00
The statements describe how traits are inherited are:
Traits are inherited when genes are passed from parents to offspring.An offspring can receive different alleles or the same alleles from each parent.What are traits?Dominant traits are always expressed when the connected allele is dominant, even if only one copy exists.
Recessive traits are expressed only if both the connected alleles are recessive.
Polygenetic traits are basically the traits that are controlled by two or more genes.
Thus, option "3 and 5" is correct.
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a eukaryotic chromosome consists of _____
A eukaryotic chromosome consists of histones.
Properties of eukaryotic chromosomeEukaryotes posses pairs of linear of chromosomes and they are all contained in the nucleus of the cell, possessing characteristic forms.
Eukaryotic chromosomes consists of histones which are condensed and DNA surrounding nuclear proteins.
Therefore, a eukaryotic chromosome consists of histones.
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When you become too cold, your hypothalamus will signal what parts of your body to raise the temperature?
A. Kidneys and lungs
The hypothalamus notices a decrease in body temperature, it sends signals to muscles and skin.
How does the hypothalamus work?Human performance is best when their body temperature is 37 ° C or 98.6° F. The equilibrium of temperature (Homeostasis) is disrupted whenever body temperature rises or increases.Together, the body's organ systems try to sustain homeostasis instinctively and cognitively. They adapt naturally to fluctuations in their external surroundings in order to keep the internal atmosphere at the best possible conditions for wellness.The brain region known as the hypothalamus is responsible for preserving the body's internal equilibrium. It is the area of the brain that keeps track of processes including body temperature, appetite, and the release of different hormones.The hypothalamus is the first organ to notice a decline in body temperature so that homeostasis can be maintained. The message is sent to the muscles and skin, which causes one to tense up and shiver as the blood vessels under the skin tighten.Therefore, it is concluded that when we feel too cold muscles and skin work to raise the temperature directed by the hypothalamus.
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A scientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal. How can she find out?.
Checking for the presence of alpha, beta, and gamma particles will determine if nuclear reactions are taking place.
What is a Nuclear reaction?This reaction occurs when two or more nuclei fuse together to form a new one and is characterized by heat also.
Its unique property is the presence of radiations which is why the presence of alpha, beta, and gamma particles should be checked.
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A scientist can find out whether a nuclear reaction is taking place or not by inspecting the presence of alpha, beta, and gamma particles.
What is Nuclear Reaction?A nuclear reaction may be defined as a strategy in which the nucleus of an atom is transformed by being shattered apart or united with the nucleus of another atom.
The complete question is as follows:
Measure the metal’s temperature.Check for the presence of alpha, beta, and gamma particles.Look for the presence of niobium compounds.Place the niobium in a pressurized container, and see if the lump becomes warmer.Therefore, the correct option for this question is B. This is because the influential existence of these particles is a characteristic indicator of radioactive decay which means unstable atoms spontaneously experience a nuclear reaction.
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Carbon dioxide released during ATP synthesis is being transported from our tissues back to the lungs, some of it is dissolved in plasma, the rest is converted and transported as other substances. Most of the carbon dioxide is converted into ______.
Answer:
HCO3
Explanation:
Scientists predict that the human population will continue to increase. Which
two events are likely to occur as a result?
A. The amount of water released into streams and rivers will
increase.
B. The amount of natural space will decrease as suburban areas
increase.
C. More people will move to the cities, increasing the amount of
natural space.
D. Air pollution will increase due to increased use of fossil fuels.
Answer:
Air pollution will increase due to increased use of fossil fuels and the amount of natural space will decrease as suburban areas increase.
what is the best definition for a Liger?
Answer:
The liger is a hybrid offspring of a male lion (Panthera leo) and a female tiger (Panthera tigris).
Explanation:
Anxiety is __________, and therefore anxiety disorders probably exist in all human societies, though there likely are some differences in prevalence and in its expression.
Anxiety is mental diseases, and therefore anxiety disorders probably exist in all human societies, though there likely are some differences in prevalence and in its expression.
What is anxiety and symptoms?Anxiety symptoms can manifest on a physical level, such as a feeling of tightness in the chest and tremors, or on an emotional level, such as the presence of negative thoughts, worry, insecurity or fear, for example, and usually several symptoms appear at the same time.
In this case, women are twice as likely to develop anxiety as men because the cultural issue, of activities that are left to the care of the woman: care for the house, with the children, with the family, regardless of whether she works or not
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which of the following lacks sufficient penetrating power for bulk sterilization? a. ultraviolet (uv) radiation at 260 nm.b. x rays.c. gamma radiation.d. alpha and beta particles.
Alpha and beta particles lacks sufficient penetrating power for bulk sterilization
What is Bulk sterilization?Bulk sterilization is a means of reducing contaminants using a vessels at a very high temperature.
Among the particles we have, alpha particles is known to have a low penetrating power compared to gamma radiation. Hence we can conclude that alpha and beta particles lacks sufficient penetrating power for bulk sterilization.
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How is nitrogen gas fixed biologically?
A. combustion of fossil fuels
B. decomposition of organic matter
C. respiration of living organisms
D. bacteria in plant roots and soil
Answer:
D. BACTERIA IN PLANT ROOTS AND SOIL
diphtheria causing agent mode of Transmission, incubation period,symptoms and preventive measures and cure
answer it faster and faster
Answer:
vf
Explanation:
fg
Diptheria is a serious infection mainly caused by a specific type of bacteria. This diseases is associated to different symptoms.
What is the causing agent?This disease is caused by Corynebacterium diphtheriae, which is a specific type of bacteria. Moreover, this bacteria produces toxins and this is the cause of the symptoms.
How is it transmitted?This can be transmitted through saliva droplets from one infected person to a healthy person. Usually, symptoms appear within 5 days after getting the bacteria.
What are the symptoms?Although this disease has many symptoms, the most important ones are sore throat and gray lining on the throat and nearby areas.
How to prevent it or treat it?Antibiotics and antitoxins are often used, but the best is to prevent it through vaccination.
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A scientist is examining a simple multicellular organism with a nucleus and specialized organelles that was found in a moist environment. What kingdom does this organism belong to?.
Answer:
Kingdom Protista
Explanation:
They have a nucleus, are multicellular, and prefer moist enviornments.
A woman with type a blood (genotype: ao) is married to a type b person (genotype: bo). What blood types will their children have?
The blood types of the children formed from a woman with type A blood (genotype: AO) is married to a type B person (genotype: BO) is:
ABAOBOOOHow to cross parents with specific genotype?According to this question, a woman with genotype AO is crossed with a man of genotype BO.
This means the following cross will be performed:
AO × BO
The offsprings of this cross will have the following genotype:
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Explain why the plant with the mutated psaB gene was dying
As given in the graph, mutation in this gene causes a decline in the production of glucose as it obstruct the process of photosynthesis.
What is psaB gene?P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1, and FX, are bound by PsaA and PsaB.
As given in the graph, mutation in this gene causes a decline in the production of glucose as it obstruct the process of photosynthesis.
Thus, the plant with the mutated psaB gene was dying.
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Which of these do scientists change when new evidence conflicts with old
ideas?
A. Experimental variables
B. Experimental results
OC. Scientific methods
OD. Scientific theories
Scientists change scientific theories when new evidence conflicts with old ideas; option D
What are scientific theories?Scientific theories are explanations put forward by scientists to explain a given observation based on current research.
Scientific theories can be modified based on changing evidence due to further research.
Therefore, it can be concluded that when new evidence disproves old ideas, scientists modify and adjust scientific theories to harmonize with new evidence.
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The feeling that one has had the same experience before is known as _____.
Answer:
deja vu
Explanation:
This actually the French word "to see again"
1. In cultivating wheat, early farmers selected wheat plant
a. whose seeds were easily dispersed.
b. whose stalks did not break easily in the wind.
c. that produced the fewest grains.
d. that had the largest seed pods.
Answer:B
Explanation:
What did Hershey and Chase
discover?
A. bacteriophages using DNA to infect bacteria
B. the shape of DNA
C. bacteria transforming a material, bringing them
back to life when one was killed
D. which bases pair together in DNA
The correct answer is (A.) bacteriophages using DNA to infect bacteria.
Explanation
1. In 1952, Alfred Hershey and Martha Chase did experiment to find the genetic material in organisms.
2.Bacteriophages (viruses that affect bacteria) were the key element for Hershey and Chase experiment.
3.In which they concluded DNA as genetic material as bacteriophages use DNA to infect bacteria and not protein.
Why does a solid change to liquid when heat is added?
A. The spacing between particles decreases.
Particles lose energy.
B.
C. The spacing between particles increases.
D. The temperature decreases.
Rese
Answer:
C. The spacing between particle increases.
Explanation:
The particles are given more energy and begin to vibrate faster when a solid is heated. As the atoms vibrate faster, spacing in between particle increases.
When there are a lot of molecules in one place it is considered an area of:
When there are a lot of molecules in one place it is considered an area of High concentration.
What are molecules?
A molecule is a collection of two or more atoms held together by the attractive forces known as chemical bonds.
The movement of molecules from a region with a high concentration to one with a lower concentration is known as diffusion. Diffusion is the passage of tiny molecules across the cell membrane during cell transport.
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Explanation:
High concentration
Mark the word lot of moleculesIt refers to colligative property which is directly proportional to no of moleculesThen it is denoting that concentration is moreHence high concentration is correct
Hull fouling is a(n) _______ introduction of nonnative species. a. unintentional b. intentional c. unimportant d. land-based please select the best answer from the choices provided a b c d
Hull fouling is an (a). unintentional introduction of nonnative species
Meaning of Hull foulingHull fouling can be defined as an unintentional act that transport species from one place to another by water vessels.
Hull fouling also mean the attachment of species to a water vessel which leads to an unknowing transportation of such species
In conclusion, Hull fouling is an unintentional introduction of nonnative species
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Answer:
a. unintentional
Explanation:
trust nerds
Heat is an example of____energy of matter, and temperature is the measure of this energy.
Internal
Potential
Latent
Kinetic
Heat is an example of Kinetic energy of matter, and temperature is the measure of this energy. So, the correct option is (D).
What is Heat?Thermal energy or heat is a type of energy that comes from the motion of atoms and molecules in a substance. It increases when these particles move faster.
Geothermal energy is the heat energy in the earth while kinetic energy is the energy stored in the motion of objects. Heat energy comes from a substance whose molecules and atoms are vibrating rapidly due to the increase in temperature.
Heat energy is another name for Thermal energy or Kinetic energy which is the energy of an object in motion. Since heat energy comes from moving particles. It is a form of kinetic energy.
Thus, heat is an example of Kinetic energy of matter, and temperature is the measure of this energy. So, the correct option is (D).
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