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
jonny [76]
3 years ago
15

Many Japanese people consume a diet rich in seaweed, including the edible red alga Porphyra, which is used for preparing sushi.

Although humans cannot digest the seaweed polysaccharides (porphyran and agarose), certain marine Bacteroidetes do possess the necessary CAZymes. Curiously, Japanese individuals frequently harbor seaweed-digesting Bacteroides plebeius in their gut microbiomes, while individuals from North America do not. Bacteroides plebeius is not a marine bacterium, and its close relatives cannot digest seaweed. What is the mostly likely explanation for how B. plebeius acquired functional porphyranase and agarase genes?
a. random DNA inversions
b. endosymbiosis with a seaweed-digesting archaeon
c. point mutations that eventually produced functional genes
d. transfer of genes from the gut epithelial cells
e. horizontal transfer of genes from a marine bacterium
Biology
1 answer:
dsp733 years ago
4 0

Answer:

e. horizontal transfer of genes from a marine bacterium

Explanation:

Horizontal gene transfer is the transfer of genetic material from one independent mature bacterium to another and creates new gene combinations in the recipient bacterium. It mostly occurs between the bacterial of different species and is responsible for the spread of new genetic traits such as antibiotic resistance, digestion of specific substances, virulence, etc.

Transfer of genetic material from the donor to host bacteria can occur in three ways: transformation, transduction, and conjugation. According to the given information, marine Bacteroidetes have enzymes required to digest porphyran and agarose. <em>B. plebeius</em> might have acquired the genes for these enzymes from marine Bacteroidetes by horizontal gene transfer. This resulted in its ability to digest the marine seaweed while its close relative species cannot do so.

You might be interested in
What type of protein penetrates to the interior of the plasma membrane but does not extend all the way through it?
stellarik [79]
Integral Hope this helps ;)
4 0
3 years ago
What is a zygote? help plz also heres a meme
weeeeeb [17]

its a diploid cell that comes from the fusion of two haploid gametes.

aka a fertilized ovum.

tyyy ima collect this meme

3 0
3 years ago
Read 2 more answers
Regarding Natural Selection, what does the term FIT mean?
devlian [24]

Answer:

to an evolutionary biologist fitness simply means reproductive success and reflects how well an organism is adapted to its environment.We call them fit because of how successfull they reproduce not how well they do at athletic events

Explanation:

8 0
2 years ago
Read 2 more answers
if god made all this planets and we are the only one with live on it then does that mean there is other life out there some wher
yan [13]
Well there is in fact other life in outer space but in the form of bacteria
3 0
3 years ago
Significance of plants in the carbon cycle
azamat

Answer:

Plants absorb carbon dioxide,water and sunlight to make their own food,grow and release oxygen through photosynthesis. They're also huge part in keeping our air clean, The carbon becomes part of the plant ;  When humans burn fossil fuels, most carbon enters the atmosphere as carbon dioxide.

Explanation:

6 0
3 years ago
Other questions:
  • PLEASE HELP ME. ASAP. I can't find anything else online.
    8·2 answers
  • What are the three components of cell theory
    15·2 answers
  • When col. lemon arrived at the hospital, the staff determined that his blood had been mistyped, and he was in fact blood type ab
    13·1 answer
  • In 1937, a man employed to lay water pipes was found to be the source of a severe epidemic of typhoid fever. The man, an asympto
    12·1 answer
  • there are multiple chickens and rabbits in a cage there are 72 heads and 200 feet inside of the cage how many chickens are in th
    11·1 answer
  • An atom with how many electrons in its outer shell is most stable?
    7·1 answer
  • What is the difference of growth in living organisms and no living things
    15·1 answer
  • How does mitosis division maintains the number of chromosomes in an individual
    11·1 answer
  • DNA replication occurs during<br> a) S phase<br> b) Mitosis<br> c) G1 phase<br> d) Prophase
    10·1 answer
  • Which statement is true about all adaptations?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!