1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rom4ik [11]
2 years ago
13

Can you match terms related to operons to their definitions? Drag the terms on the left to the appropriate blanks on the right t

o complete the sentences.
1. A(n) is a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.
2. The is/are arranged sequentially after the promoter.
3. A(n) is a specific nucleotide sequence in DNA that binds RNA polymerase, positioning it to start transcribing RNA at the appropriate place.
Biology
1 answer:
lakkis [162]2 years ago
6 0

Answer:

1. A(n) operonis a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.

2. The genes of an operon is/are arranged sequentially after the promoter.

3. A(n) promoter is a specific nucleotide sequence in DNA that binds RNA polymerase, positioning it to start transcribing RNA at the appropriate place.

4. A(n) regulatory genecodes for a protein, such as a repressor, that controls the transcription of another gene or group of genes.

5. Regulatory proteins bind to the operator to control expression of the operon.

6. A(n) repressoris a protein that inhibits gene transcription. In prokaryotes, this protein binds to the DNA in or near the promoter.

7. A(n) inducer is a specific small molecule that binds to a bacterial regulatory protein and changes its shape so that it cannot bind to an operator, thus switching an operon on.

Explanation:

You might be interested in
A tall green plant is homozygous for each trait. If T is the tall allele,and G is the green allele, what are the genotype and th
olganol [36]

Answer:

GGTT,100% green and tall

Explanation:

3 0
3 years ago
Read 2 more answers
Your brain and neurons are in constant action, sending billions of ___________and________messages each day to keep everything, f
Leviafan [203]

Answer:

Until recently, most neuroscientists thought we were born with all the neurons we were ever going to have. As children we might produce some new neurons to help build the pathways - called neural circuits - that act as information highways between different areas of the brain. But scientists believed that once a neural circuit was in place, adding any new neurons would disrupt the flow of information and disable the brain’s communication system.

In 1962, scientist Joseph Altman challenged this belief when he saw evidence of neurogenesis (the birth of neurons) in a region of the adult rat brain called the hippocampus. He later reported that newborn neurons migrated from their birthplace in the hippocampus to other parts of the brain. In 1979, another scientist, Michael Kaplan, confirmed Altman’s findings in the rat brain, and in 1983 he found neural precursor cells in the forebrain of an adult monkey.

These discoveries about neurogenesis in the adult brain were surprising to other researchers who didn’t think they could be true in humans. But in the early 1980s, a scientist trying to understand how birds learn to sing suggested that neuroscientists look again at neurogenesis in the adult brain and begin to see how it might make sense. In a series of experiments, Fernando Nottebohm and his research team showed that the numbers of neurons in the forebrains of male canaries dramatically increased during the mating season. This was the same time in which the birds had to learn new songs to attract females.

Why did these bird brains add neurons at such a critical time in learning? Nottebohm believed it was because fresh neurons helped store new song patterns within the neural circuits of the forebrain, the area of the brain that controls complex behaviors. These new neurons made learning possible. If birds made new neurons to help them remember and learn, Nottebohm thought the brains of mammals might too.

Other scientists believed these findings could not apply to mammals, but Elizabeth Gould later found evidence of newborn neurons in a distinct area of the brain in monkeys, and Fred Gage and Peter Eriksson showed that the adult human brain produced new neurons in a similar area.

For some neuroscientists, neurogenesis in the adult brain is still an unproven theory. But others think the evidence offers intriguing possibilities about the role of adult-generated neurons in learning and memory.

if wrong report me

5 0
3 years ago
Which equation is an expression of the second law of thermodynamics for a spontaneous process?.
leva [86]

The second law of thermodynamics states that a spontaneous process increases the entropy of the universe, S(univ) > 0. If ΔS(univ) < 0, the process is nonspontaneous, and if ΔS(univ) = 0, the system is at equilibrium

<h3>What is thermodynamics ?</h3>

The science of thermodynamics examines the connections between heat, work, temperature, and energy. The rules of thermodynamics explain how energy moves inside a system and whether or not the system is capable of performing beneficial work on its surroundings.

  • Energy cannot be generated or destroyed, according to Thermodynamics' First Law. The entropy of the cosmos increases for spontaneous processes, according to the second law of thermodynamics. Third Law of Thermodynamics: Entropy is zero in a flawless crystal at absolute zero Kelvin.

Learn more about Thermodynamics here:

brainly.com/question/13059309

#SPJ4

8 0
2 years ago
What is the meaning of life?Why are we chosen to live/be on this world?
Alexeev081 [22]

Answer:

A special characteristic of one living creature is to grow, to do metabolic processes to react to adapt and to reproduce.

Explanation:

The purpose of human life is to be aware of the existence, to understand existence,  to be responsible and to enjoy.

Why are we chosen to live in this world it is not known. There are theories that RNA plays an important part in this. The process that many forms of life developed through history by mutation and natural selection. And the most common answer to a question why are we here is the simple process of evolution.

3 0
3 years ago
Read 2 more answers
What do flagella and cilia have in common?
Fudgin [204]

D. They both help organisms to move.

4 0
3 years ago
Other questions:
  • Which of the following produces the first heart sound?
    10·2 answers
  • Which statement correctly compares the inheritance of blood type in humans and the inheritance of length of ears in corn plants?
    8·2 answers
  • What happens during RNA splicing
    11·2 answers
  • Which alignment of the Sun, Moon, and Earth causes a lunar eclipse?
    8·2 answers
  • A researcher stimulates, with a small electrical charge, a portion of a cat's limbic system. The cat suddenly jumps and acts as
    8·1 answer
  • Which of the following terms is used to describe cells that lack a nucleus?
    15·1 answer
  • What is the smallest part of an element that has the same properties of that element?
    12·1 answer
  • QUESTION 1 Genetic information has become part of our culture and it is difficult to tell the difference between unmodified and
    12·1 answer
  • What is biospare tell please​
    15·1 answer
  • Which statements are examples of how the use of resources has changed?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!