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swat32
3 years ago
15

Other than passing genes from parents to offspring, bacteria are also capable of injecting their genes directly into other bacte

ria. Using complete sentences, explain how this speeds up the process of evolution in bacteria.
Biology
1 answer:
s344n2d4d5 [400]3 years ago
6 0

Usually, genes are transferred by bacteriophages, viruses that precisely takeover bacteria cells. Phages inject their own genetic material into the host cell like tiny syringes, compelling it to produce new phages. Throughout this occurrence, genes from the bacterial genome can be combined into the newly made phages. Subsequently, they inject their newly altered genetic load into other bacteria. By this, bacteriophages serve as a transportation, taking up DNA from one bacterium and leaving it into another. Bacteria can also connect through tiny connection tubes wherein they exchange pieces of DNA. They can take up genetic material from the environment as well. There are actually three ways for bacteria to transfer genes. The first one is called Conjugation, which is the transfer of DNA straight from one cell to another through cell-cell contact. Secondly, bacteria are adept at taking up DNA right from their environment and combining it into their genomes.This process is known as natural Transformation. Lastly, Transduction, wherein DNA is transferred from one cell to another by a virus.

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How many variables are changed in a controlled experiment
Snowcat [4.5K]

Answer:

One

Explanation:

In a controlled experiment only one variable is changed at a time, while the others are kept the same/controlled so changes can be observed and a causation can be determined.

8 0
3 years ago
Which structure contains peptidoglycan in bacteria? What is the name of the structure?
Natalija [7]

Peptidoglycan is present in the cell wall of gram-positive bacteria. Bacteria are safeguarded by a robust cell wall comprising peptidoglycan. The layer of peptidoglycan in the cell wall of bacteria refers to a crystal lattice composition produced from linear chains of two alternating amino sugars, that is NAM (N-acetylmuramic acid) and NAG (N-acetylglucosamine). Peptidoglycans is one of the most essential sources of D-amino acids in nature.

5 0
3 years ago
Read 2 more answers
Veronica wrote Charles Darwin’s main points on the board, but she made a mistake in one point.
Leno4ka [110]

<span>The question above is incomplete, the remaining part of the question is given below:
1. Since more offspring are produced than an environment can support, organisms within a population must compete for resources to survive.

2. Due to variations within the population, some competitors will be better equipped for survival than others.

3. The best-equipped organisms will survive and will produce well-equipped offspring. 

4. Variations that help with survival will be passed on to future generations and will rapidly change the whole population.

Which point is flawed as written above?
A. point 1
B. point 2
C. point 3
D. point 4</span>

ANSWER

The correct option is D.

All the options written above about Darwin's theory are quite correct with the exception of option D. Charles Darwin was the scientist who proposed the theory of evolution by mean of natural selection. Darwin submitted that, due to the scarcity of needed resources in an environment, it is only the fittest individuals in a particular population that will be able to survive and produce offspring that share their adaptability features. As this continue from generation to generation, it leads to evolution, which is defined as the changes overtime, which give rise to new species that share a common ancestors. Contrary to the point made in option D, evolution by natural selection is not a rapid process at all, it is a process that occur over a long period of time.

7 0
3 years ago
Which is one way that DNA replication is similar in eukaryotic cells and prokaryotic cells?
lora16 [44]
A number of replication forks
8 0
3 years ago
Read 2 more answers
Answer it answer it .
Serjik [45]

Answer:

Pseudopodia

Explanation:

  • Human uses his legs for locomotion and movement similarly in amoeba pseudopodia is used for movement in amoeba and other unicellular organisms.
  • Pseudopodia is a structure in amoeba which is used for movement and locomotion in amoeba and it is also used for engulfing food, amoebic movement is also considered as a protoplasmic movement.
7 0
3 years ago
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