All organisms must regulate by turning genes on and off in different cells at different times.

a. True
b. False

Answers

Answer 1

Answer:

a. True

Explanation:

The genome can be defined as the complete set of genetic information of an organism which is responsible to produce all the biological components required to carry out its metabolic functions (i.e., development, growth, reproduction, etc). These genes are transcriptionally expressed to produce mRNAs which are subsequently used to synthesize specific proteins (i.e., enzymes and structural proteins) by the process of translation. All organisms (i.e., either unicellular or multicellular organisms) exhibit specific gene expression programs by which such genes are regulated over time. Within the cell, gene regulation is essential to carry out biological processes ranging from development and differentiation to cell cycle arrest. These gene expression programs are acutely regulated via genetic (e.g., transcription factor binding) and epigenetic (e.g., DNA methylation) mechanisms, which work together in order to turn on/off genes during development.


Related Questions

Which of the following statements is true?
Earth's atmosphere helps it maintain a constant temperature.
Condensation is the process by which water changes from a liquid into a gas.
Plants do not perform respiration.
Animals add water to the atmosphere through photosynthesis.

Answers

Earth's atmosphere helps maintain a constant temperature.

Answer:

hello there your answer is A:Earth's atmosphere helps it maintain a constant temperature.

Explanation:

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The adenine of the start codon is located at the +1 position. Use the DNA Mutations Interactive to determine which statements describe missense mutations. a substitution of G to U at position +13 in the sense strand a transition at position +12 in the antisense strand a transversion of C in the sense strand of the histidine codon a G nucleotide is inserted after position +1 in the antisense strand a deletion of the A at position +7 in the antisense strand an insertion of A between positions +7 and +8 on the sense s

Answers

Answer:

A transition at position +12 in the antisense strand

A deletion of the A at position +7 in the antisense strand

Explanation:

Given that Adenine of the start codon is located at the +1 position, The correct  statements that  describe missense mutations are

 A transition at position +12 in the antisense strandA deletion of the A at position +7 in the antisense strand

Adenine is a purine nucleobase that is used in the formation of nucleic acids

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Answers

I am sorry what?????

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Mark all that apply. What evidence is used to classify living things into groups.

A) cell type

B) habitat

C) how organism obtains food and energy

D) common ancestry

E) DNA

Answers

Answer:

D.

Explanation:

Taxonomy is a branch of biology centered around classifying animals into living groups. This is done based on the differences and similarities between animals. Taxa in the Linnaean system include kingdom, phylum, class, order, family, genus, and species. Between these relations it all stems from common ancestry. Which is what can relate species to others. Hope this helps!!

Answer:

your answer would be D

Explanation:

cause I big brain

Discuss the importance of the change in CO with exercise?

Answers

Enhancing cardiac output allows you to maintain lower heart rates during physical activity. During exercise SV will increase related to the response of the increased pressure of the heart in order to supply blood to the body.

how is the ratio of gas produced during fermentation related to yeast glucose solution

Answers

I doe relays need
To be a real answer

Does anyone know how to do Punnet squares?


Use the Punnet square to answer the question

1. Write the phenotypes of the three genotypes shown above.

TT _______


tt _______


YT _______

Answers

Answer:

homzygous homzygous heterozygous

Explanation:

Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Which of the following mutations could lead to constitutive expression of the genes of the lac operon? A mutation in the lac-Z gene A mutation in the lac-Y gene A mutation in the operator sequence A super repressor mutation Submit Part B Which of the following best describes the biological role of the lac operon? View Available Hint(s) Which of the following best describes the biological role of the lac operon? It ensures that bacterial cells produce lactose only when no other food sources are available. It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment. It ensures that a cell produces enzymes involved in lactose metabolism in a constitutive manner. It prevents other sugars from being metabolized until all available lactose has been used. Submit Part C The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. View Available Hint(s) The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. True False

Answers

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

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Answers

I think the answer is C. If correct please give me brainliest because I am almost to expert and I need 6 more brainliest answers because I have all the points all I need are the brainliest.

Question 20 of 34
Which situation shows a nonrenewable resource in use?
A. Solar energy reaches Earth's surface.
B. Sunflowers grow from sunflower seeds.
O c. Computer chips are made from silicon.
D. Lobsters are caught off the coast of Maine.

Answers

Answer:

c. Computer chips are made from silicon.

Explanation:

Non-renewable resources are natural substances that cannot be easily replenished when used. Examples are natural gas, coal, oil, nuclear energy, etc. Silicon is made when Silica is heated with carbon after which the product is reacted with hydrocarbons to polymerize them. Since the hydrocarbons are made from oil and natural gas, the resulting product is non-renewable.

Chips made from silicon are not biodegradable because to reuse them, they must be sent to companies that have specialty in renewing them.

What does photosynthesis produce?

Answers

Answer: cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen

Explanation:

i hope this help

one of these is wrong but I don’t know which one can someone please help me

Answers

I think both of them are positive feedback

A skin cell has just divided. In which order will its daughter cells undergo the next steps of the cell cycle?
A. Separation of cell contents➡️separation of chromosomes➡️cell growth and DNA replication

B. Cell growth and DNA replication➡️ Separation of cell contents➡️ separation of chromosomes

C. separation of chromosomes➡️ Cell growth and DNA replication➡️ separation of cell contents

D. Cell growth and DNA replication➡️ separation of chromosomes➡️ separation of cell contents

Answers

Answer:

madre mía el bicho and is B

Research a article on how climate change effects polar bears. 7-10 sentences. And don’t use any articles that are .com and attach your article link:)

Answers

Answer: https://www.wwf.org.uk/learn/wildlife/polar-bears#:~:text=Challenges%20affecting%20polar%20bears&text=The%20Arctic%20is%20warming%20about,ice%20to%20raise%20their%20young.

https://www.carbonbrief.org/polar-bears-and-climate-change-what-does-the-science-say

Explanation:

Hindus refer to the three most important parts of Brahman as:
A. Vishnu.
B. Shiva.
C. Ganesha.
D. Trimurti.

Answers

Answer:

D. Trimurti

Explanation:

thanks hope it helps

What are two types of animal waste?

Answers

Answer:

Throughout the following segment, the summary of the given question is summarized.

Explanation:

Animal wastes were most typically thought of as excretory products somewhat from living organisms.

The two types of waste are:

Biodegradable:

The certain commodity that could be quickly decomposed by moisture or water, oxygen, sunlight, or microbes has been considered biodegradable waste.

Non-biodegradable:

Material has always been characterized as such a substance that can't be disassociated via living phenomena as well as being a pollutant.

Why does the bronchioles get smaller and smaller before they reach the alveoli?

Answers

Answer: Parasympathetic stimulation causes bronchoconstriction while sympathetic stimulation causes bronchodilation. During an asthma attack, the muscles that encircle the airway tighten or constrict, limiting the flow of air to and from the lungs.

Explanation: i hope this answers your question and i have a awesome marvelous day.

Answer:

In your lungs, the main airways (bronchi) branch off into smaller and smaller passageways -the smallest, called bronchioles lead to tiny air sacs (alveoli)

the bronchiole end in tiny air sacs called alveoli, where oxygen is transferred from the inhaled air to the blood, after absorbing oxygen, the blood leaves the lungs and is carried to the heart, the blood then is pumped through your body to provide oxygen to the cells of your tissues and organs.

help I will mark as brainliest ​

Answers

Answer:

z and y only

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Cancer is a disease of the cell cycle. Which of the following is NOT true of cancer cells? Cancer cells engage in uncontrolled cell division. Cancer cells ignore signals that should cause them to stop dividing Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activity is deteced.

Answers

Answer:

Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activitiy is detected is your answer.

Explanation:

This is the answer because cancer cells are what cause tumors which are basically when cells are dividing uncontrollably. Cancer cells never ever exit cell cycle they are always repeating it causing abnormal production of cancer cells so the last answer cancer cells exit the cell cycle is false making it the answer for this question.

Please select the word from the list that best fits the definition

States that buoyant force = weight of the fluid displaced

Answers

Answer:

Archimedes Principle is the word that best fits the definition.

hope this helps you ☺️☺️

Can you answer what’s on this worksheet?

Answers

What question do you want answered.

In the late 1980s and early 1990s, the percentage of Icelandic children whose bacterial infections were caused by bacteria resistant to penicillin rose at an alarming rate. After public health officials initiated a campaign to reduce the use of penicillin, resistance dropped off. This observation is consistent with the hypothesis that ________.

Answers

Answer:

The correct answer would be - "bacterial populations evolve in response to the selection pressure imposed by antibiotics".

Explanation:

The given information provided in the question about the bacterial infection supports the hypothesis that the bacterial population shows the evolution in response to the selection pressure caused by the antibiotics due to the fact that bacteria increased resistance gradually with time. This resistance towards antibiotics increased the percentage of bacterially infected children in the late 1980s and early 1990s.

In this case, the population of bacteria having resistance genes is selected to evolved selected to increase their offsprings.

16. Which combination of terms correctly matches an organ system with a tissue in that system?
a. Circulatory system - cardiac muscle
b. Digestive system - cartilage
C. Respiratory system - pancreas
d. Nervous system - marrow

Answers

Answer:

B

Explanation:

Answer:

A

Explanation:

The Circulatory System is a system that circulates blood around the body.  Cardiac Muscle refers to your heart, which is a prominent part in the Circulatory System.

A cell goes through mitosis every 30 minutes. How many cells will there be after 3.5 hours?

Answers

Answer: 7

Explanation:

3.5 = 210 minutes

210 / 30 = 7

The reactions of glycolysis that are shared with those in gluconeogenesis (ie use the same enzymes) are those that: Are substrate level phosphorylations Are irreversible. Are regulated steps. Operate close to equilibrium. g

Answers

Answer:

The reactions of glycolysis that are shared with those in gluconeogenesis (ie use the same enzymes) are those that Are regulated steps.

Explanation:

Glycolisis and gluconeogenesis are two mechanisms related to the carbohydrates metabolism.  Sometimes they are considered reverse processes. However, they are different because of the control points they have where reactions are irreversible.

Glycolisis and gluconeogenesis share 7 common reactions, that are reversible. Thses reactions are coordinated and regulated by F-2 and 6-BP as the answer to the hormonal action.

Glycolisis happens in the muscle, while Gluconeogenesis happens in the liver. Together they form the "Cori Cycle".

3. When the mRNA is translated, the order of its codons determines the order of amino acids in the resulting polypeptide O a. True O b. False​

Answers

Answer:

True

Explanation:

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Answers

Answer:

a.

Explanation: i had this in a social studies test before its a

Answer:

IN my opinion, it should be B

Explanation:

Name two types of proteins that regulate the cell cycle.How do these proteins work?

Answers

Answer:

Internal and external regulators are two types of proteins that regulate the cell cycle. Internal regulators allow the cell cycle to proceed only after certain events occur. External regulators speed up or slow down the cell cycle.

Explanation:

Internal and external regulators are two types of proteins that regulate the cell cycle. Internal regulators allow the cell cycle to proceed only after certain events occur while external regulators speed up or slow down the cell cycle.

What are Proteins?

Proteins are large and complex molecules which play many critical roles in the body. Proteins do the work in cells which are required for the structure, function, and regulation of the body's tissues and organs.

Proteins are made up of many smaller units called amino acids, which are linked together in long chains. There are 20 different types of amino acids that can be linked to make a protein.

The sequence of amino acids determines each protein's unique 3-dimensional structure and its specific function. Amino acids are coded for by a combination of three DNA building blocks (nucleotides), which are determined by the sequence of genes.

Thus, internal and external regulators are two types of proteins that regulate the cell cycle. Internal regulators allow the cell cycle to proceed only after certain events occur while external regulators speed up or slow down the cell cycle.

Learn more about Proteins, here:

https://brainly.com/question/17095120

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Which of the following best describes how the RNA sequence specifies the production of an amino acid chain?

A.
Each individual RNA base codes for three amino acids.

B.
Each group of three RNA bases codes for an enzyme that connects amino acids.

C.
Each individual RNA base codes for a ribosome location where amino acids are assembled.

D.
Each group of three RNA bases codes for a specific amino acid.

Answers

Answer:

The answer is B Each group of three RNA bases codes for an enzyme that connects amino acids.

which organisms transform nitrogen to a form that useful to plants

Answers

Answer:

nitrogen-fixing bacteria

Answer: A

Explanation:

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