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blsea [12.9K]
2 years ago
11

What turns on and off the lac operon

Biology
1 answer:
d1i1m1o1n [39]2 years ago
3 0

Answer: off: lac repressor, on: CAP

Explanation:

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11. Which of the following statements is/are correct?
finlep [7]

Answer: Options A, B, C, D at correct

Explanation:

Cnidarians are a branch of invertebrates characterised by by a radially symmetric body including a saclike internal cavity and nematocysts; stinging structures that aids in feeding. They are also known as coelentrates. They are diploblastic (2 body layer). They also reproduce asexually by various mean including budding. Example include sea anemones, hydra, corals, jellyfish etc

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2 years ago
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John has two sisters and two brothers. Three of the five children in the family have dark brown hair, one has red hair, and one
mafiozo [28]
The correct answer to this question would be "B", co-dominance.
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3 years ago
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How is mRNA, tRNA, rRNA important to protein production
MrRissso [65]
Ribosomal RNA<span> (</span>rRNA<span>) associates with a set of </span>proteins<span> to form ribosomes. These complex structures, which physically move along an </span>mRNA<span> molecule, catalyze the assembly of amino acids into </span>protein<span> chains. They also bind </span>tRNAs<span> and various accessory molecules necessary for </span>protein<span> synthesis


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6 0
3 years ago
Matching Responses and Stimuli
lora16 [44]

Answer:

smelling rotten eggs - covering your nose

touching a hot dish - pulling your hand away

jumping into a cold pool - shivering

Explanation:

<u>A stimulus generally refers to a detectable change in the environment of an organism. These changes could be physical or chemical and could be in the internal or external environment of organisms. </u>

Organisms react to changes in their internal or external environment by responding appropriately. Hence perceiving the smell of rotten egg, feeling the hotness of a dish by touching it, and feeling cold immediately one jumps into a cold pool are all examples of stimuli and their corresponding responses would be covering one's nose, pulling the hand away, and shivering of the body in order to counter the cold.

In other words:

<em>smelling rotten eggs - covering your nose</em>

<em>touching a hot dish - pulling your hand away</em>

<em>jumping into a cold pool - shivering</em>

5 0
3 years ago
Which of the following is not a component of the skeletal system?
ZanzabumX [31]

Answer:Blood

Explanation:Bones contain bone marrow. Red and white blood cells are produced in the bone marrow. Protects and supports organs: Your skull shields your brain, your ribs protect your heart and lungs, and your backbone protects your spine.

7 0
2 years ago
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