All categories

4 years ago

Which of the following statements is not true of the cI (lambda repressor) protein in bacteriophage lambda?

Biology

2 answers:

lions [1.4K]4 years ago

7 0

The correct answer is -can activate transcription of the cro gene.

This is because in the presence of Ci only the cI gene may be transcribed (CRO gene cannot).

Only in the absence of cI proteins, the cro gene may be transcribed. Both genes are repressed at high concentration of Ci.

Ratling [72]4 years ago

6 0

Among the following statement about the lambda bacteriophage the one that is not true is that capable of both positive and negative auto regulation

Answer: Option A

Explanation:

The lambda bacteriophage is a virus that affects the bacteria especially the Esrechia coli bacterium, the genetic material gets injected to the cytoplasm of the bacteria from its head leaving back the protein capsid of the cell, ones it gets into the host cell it either follows the lytic or the lysogenic cycle. In the lytic cycle it replicates inside and causes rupture of the host whereas in a lysogenic phase it coexists with the host.

You might be interested in

Mikayla is at the garden center picking out plants for her front garden. She sees flowers in many different colors and patterns.

dimaraw [331]

3 is the answer to the question

4 0

3 years ago

Read 2 more answers

"You are in your room listening to music and, realize you are thirsty, you can feel that your soda is no longer cold, and you de

Effectus [21]

Answer:

A central nervous system is consist of brain and spinal cord. The brain is made of the cerebrum, cerebellum, and brain stem.

The parts of the central nervous system involved in given behaviors are as follows:

Listening to music: The cerebrum in the brain is responsible for the behaviour of listening music as it functions for auditory stimuli (temporal lobe).
Realization of being thirsty: limbic system in brain is responsible for the regulation of thirst.

Feel that soda is no longer cold: Hypothalamus in brain controls the sense of temperature felt by the body.

Decide to invite a friend over: The cerebrum functions for thinking and decision making.

3 0

3 years ago

Which is an example of a chemical change?

igor_vitrenko [27]

Answer:

when you put chemicals in water and the water gets chemically changed?

7 0

3 years ago

Read 2 more answers

In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a v

GuDViN [60]

To confirm the above hypothesis, Maria should perform an experiment to prove that xylem is responsible for the transport of coloured water through the plant. This is called the ascent of sap.

A suitable plant having a tender, semitransparent stem should be selected. The root system of the plant should be cut off and the twig has to be placed half-immersed in a coloured solution of water for about one hour. Later, when the plant is observed, parallely running streaks of coloured water can be seen through the semitransparent stem and other parts of the plant indicating that the xylem is involved in the upward movement of water.

5 0

3 years ago

Read 2 more answers

If 2 organisms are in the same phylum, they are also in the same ____________.

Marina86 [1]

The answer would be kingdom

7 0

3 years ago