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sattari [20]
3 years ago
11

While most bacteria are eliminated by antibiotics, some can possess mutations that are resistant to antibiotics, leading to more

drug-resistant strains of bacteria. Such a mutation is an example of which of Charles Darwin's proposed criteria for traits to evolve through natural selection?
The trait must make the individual more fit to survive. T/F
Biology
1 answer:
Papessa [141]3 years ago
3 0

Answer:

The trait must make the individual more fit to survive. True

Explanation:

Darwin proposed that genetic variations are present in natural populations. Some genetic traits become beneficial under the changed environmental conditions. The organisms with these genetic traits are able to survive and reproduce better than the organisms that lack them. This results in an increased proportion of the beneficial genetic traits in the population over generations as the individuals having those traits reproduce more.

The presence of antibiotic resistance is a beneficial genetic trait that allows bacteria to survive in the presence of antibiotics. Natural selection favors the bacterial having antibiotic resistance and increases their proportions in the population over generations.

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What 3 factors determine cell "readiness" for mitosis?
goldfiish [28.3K]

Answer:

Chromosomes must still be copied.

the cell must double in size.

the nuclear DNA must double.

Explanation:

7 0
3 years ago
how is translation initiated? view available hint(s)for part a hint 1for part a. how is translation initiated? the start codon s
Irina18 [472]

The Translation initiated is <u>Option D.All of the listed answers are correct. </u>

At the initiation of translation ribosomes and tRNA bind to the mRNA. tRNA is located at the first docking site of the ribosome. The anticodon of this tRNA is complementary to the start codon of the mRNA where translation begins. After binding to the mRNA, the ribosome initiates translation at the start codon AUG and moves the mRNA transcript one codon at a time until it reaches the stop codon.

When tRNA recognizes and binds to the corresponding codon in the ribosome, it transfers the corresponding amino acid to the end of the growing amino acid chain. tRNA and ribosomes then continue to decode the mRNA molecule until the entire sequence is translated into protein. tRNA acts as an adapter molecule during the translation process. Formerly known as soluble RNA or sRNA. As an adapter, it connects amino acids to nucleic acids.

Learn more about Translation initiated here:-brainly.com/question/7169341

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5 0
1 year ago
Which ligaments prevents the tibia from sliding forward in the knee joint?
Vladimir79 [104]

Answer: Anterior cruciate ligament

Explanation:The anterior cruciate ligament (ACL) connects the front of the tibia to the back of the femur. It keeps the tibia from sliding forward and limits its rotation. The posterior cruciate ligament (PCL) keeps the tibia from sliding backward. The patella ligament helps secure the patella over the front of the knee joint.

7 0
3 years ago
10POINTS!!!
DENIUS [597]
A and C keep their shape 
5 0
3 years ago
Read 2 more answers
Cellulases are enzymes capable of breaking down cellulose, releasing molecules of glucose. to which category of organic macromol
erastovalidia [21]

Cellulose belongs to carbohydrates.  

Cellulose is classified as a carbohydrate, a polysaccharide, as they are formed of the glucose monomers chain. It is the prime component in the walls of the cells of plants, assisting the plants to remain upright and stiff. Humans cannot digest cellulose due to the absence of cellulase, however, it is essential in the diet as fiber.  

However, the animals like sheep, cows, and horses can digest cellulose that is why they can acquire nutrients and energy they require from the grass.  


8 0
2 years ago
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