The operator portion of the lac operon controls RNA polymerase's access to lactose-metabolizing genes. true false

Answers

Answer 1

Answer: True!

The lac operon is responsible for transport and metabolism of lactose in enteric bacteria. It consists of structural genes, promoter, operator, regulator, and terminator. The operator is a segment of DNA to which some repressor proteins bind. These proteins prevent RNA polymerase from binding to genes and transcribing them. Thus, the operator controls RNA polymerase's access to lactose-metabolizing genes.

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What is Biogeography the study of
Which factors provide the basis for the differences observed in the major land biomes on Earth?A.Average temperature and average precipitationB. Average windspeed and average oxygen levelsC. Average day length and average night lengthD. Average organic content and average mineral content in soil
Amy goes jogging every morning. She has big strong muscles in her legs. Will Amy’s children inherit big strong leg muscles?1) No, because big strong muscles are caused by your lifestyle and cannot be inherited. 2) Possibly, because Amy’s children will inherit some of her features. 3) Yes, because Amy’s children will inherit her features. 4) Yes, because Amy’s children will inherit genetic information from her genome.
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Describe how viruses and prions can alter cell functions

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Since viruses are nonliving, they will need a host in order to take over and spread. Thus, viruses need help in order to reproduce. However on the other hand, Prions are also NON-living but they do not reproduce, they are protein that are not folded properly and continue to create those badly folded proteins to alter the cell.

Which organisms gathers its energy directly from the sun

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Possible answers could be:
plants
plants and bacteria
producers
autotrophs
photoautotrophs

Just pick whichever answer you remember your teacher/worksheet saying.

The organisms that gathers it's energy directly from the sun whole be the producers(plants).

What are producers in an ecosystem?

In the ecosystem, the producers are those organisms that are capable of generating their own food through thermal energy they trapped from sunlight.

A typical example of the producers in the ecosystem are the green plants.

Green plants make their food by taking sunlight and using the energy to make sugar in a process called photosynthesis.

Learn more about photosynthesis here:

brainly.com/question/29793700

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Can someone pls help me with this (8th grade science)

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Answer:

Explanation:

As he kicks the ball the speed increases, where he kicks the ball also is a factor, since he kicks it in the same direction that is why it is choice A.

Do you forget things? Absent-mindedness is an inherited recessive trait. The Punnett square shows the genetic cross for absent-mindedness in the Smith family. If the Smith's have six children, how many could be absent-minded? Question 15 options: 0 1 2 3.

Answers

Since it is recessive, it will be out ruled unless two recessive genes combine. If one is AA and the other is Aa There will be AA, AA, Aa, Aa. AA is dominant, therefore Aa can have the possibility of either trait. so there is 6 possibility.

What is a Recessive Trait?

A recessive trait is a trait that is expressed when an organism has two recessive alleles or forms of a gene. Traits are features of organisms that can be observed, this includes physical characteristics such as hair and eye colour, and also characteristics that may not be readily apparent, e.g. the shape of blood cells.

Thus, the correct option is "0".

Learn more about the punnet square here: brainly.com/question/23109015

A wet handkerchief is kept on the forehead of person suffering from fever. why?

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Answer:

the water evaporates and absorbs the heat from his body, that causes cooling and lowers his body temperature.

Explanation:

Meiosis results in greater genetic variation thanasexual reproduction because it?? Help please

Answers

This is because of independent assortment at metaphase, crossing over at prophase I, and also, sexual reproduction occurs between two gametes each with different genetic material. There's random mating and also random fertilization (which sperm gets the egg).

Answer:Ninjbhwhi

Explanation:

Other Questions

Another name for false productivity

What were four lines of evidence Darwin used to support his argument for evolution?

What happens during transcription?a. The transcription process stops. b. RNA polymerase is guided to the correct place. c. mRNA is produced from the DNA. d. DNA is produced from the mRNA.

Which of the following is correctly paired with its function?Sensory somatic nervous system—controls skeletal musclesAutonomic nervous system—creates voluntary response to stimuliParasympathetic nervous system—controls body response to emergencySympathetic nervous system—brings body to homeostasisI know that C and D are mixed up definitions. The sympathetic nervous system controls the response to emergency situations and the parasympathetic brings the body back to homeostasis. I'm also pretty sure the autonomic nervous system controls involuntary responses, not voluntary.