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
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.

You might be interested in
What is a main function of fats in the body?
Kay [80]
Provision of energy. Fats are a source of energy in the human diet, together with carbohydrates and proteins, the other two main macronutrients.
7 0
2 years ago
Read 2 more answers
The structure of aba is shown below. why was this a suitable substitution for a cys residue? under what circumstances would it n
Inessa [10]

Answer and explanation;

-Aba is a suitable replacement because Aba and Cys have approximately the same sized side chain and are similarly hydrophobic.

-However, Aba cannot form disulfide bonds so it will not be a suitable replacement if these are required.

-Alpha-Aminobutyric acid is biosynthesized by transaminating oxobutyrate, a metabolite in isoleucine biosynthesis.


8 0
3 years ago
If a true-breeding blue-flowered plant was crossed with a true-breeding white-flowered plant, what phenotypic ratio would we obs
Westkost [7]

Answer:

B. 100 percent white

Explanation:

According to Mendel's law of dominance, the dominant allele of a gene masks the expression of the recessive allele in a heterozygous state. Therefore, when two pure breeding plants that differ with respect to one genetic trait are crossed, the progeny expresses only the dominant phenotype. Here, one allele should be completely dominant over the other. The allele for the white flowers is completely dominant over the allele for the blue flowers.

Let' assume that the allele "W" imparts white color to the flowers while the allele "w" gives blue color. When a true-breeding blue-flowered plant (ww) is crossed with a true-breeding white-flowered plant (WW), the progeny would be heterozygous for the dominant allele "W" and would exhibit "white color of flowers" (the dominant trait).

WW (white-flowered plant) x ww (blue-flowered plant) = Ww (white-flowered plant)

6 0
2 years ago
When a phosphate group is released ATP becomes
Marat540 [252]
This occurs when a molecule of adenosine diphosphate (ADP) uses the energy released during cellular respiration to bond with a thirdphosphate group, becoming amolecule of ATP. So the energy from cellular respiration is stored in the bond between the 2nd and 3rdphosphate group
8 0
3 years ago
Identify and describe the three invisible planes that divide the human body ?
LiRa [457]

Answer:

longitudinal (sagittal)

Coronal (frontal)

Transverse

5 0
3 years ago
Other questions:
  • In an ecosystem can there be more carnivores than herbivores
    9·1 answer
  • You modify the gene for an integral membrane protein so that the cytoplasmic portions of the protein are deleted. when the gene
    12·1 answer
  • A/an ___ is a type of research that involves observation and collecting data but does not include a control.
    7·1 answer
  • In the Punnett square, fill in the shaded boxes with the alleles of each parent. Use B for the
    10·1 answer
  • Which is the best analogy for classification?
    11·2 answers
  • Explain how both genes, and the environment determine your risk of developing cancer. Please
    11·1 answer
  • The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded p
    9·1 answer
  • Society has changed its view of smoking since the 1960's. The major cause of this change was
    10·1 answer
  • If a population is steady at its carrying capacity, but then a group of organisms from that species moves in to the same space o
    15·1 answer
  • to stimulate muscle contraction, acetylcholine is released from the ___________ into the synaptic cleft.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!