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
Yakvenalex [24]
3 years ago
7

There are three major, distinct groups of organisms: bacteria, archaea, and eukaryotes. However, until recently bacteria and arc

haea were considered much more closely related than we know they are today. What is one of the most important ways scientists determined the evolutionary distinctiveness of these three groups?
Biology
1 answer:
Sveta_85 [38]3 years ago
5 0

Answer:

Comparative genomics of the three groups

Explanation:

The comparative genomics of the three groups was used to determine their evolutionary distinctiveness. Comparative genomics is a powerful tool used to study evolutionary changes among organisms, it helps to identify gene similarities and differences among organisms.  

Bacteria and archaea (formerly called archaebacteria)  were considered much more closely related, but DNA sequence analysis showed numerous differences between the two groups, and further proved that archaea was closely related to eukarya than bacteria.

However, in 1970, Dr. Carl Woese and other scientists in a bid to determine the distinction between the three groups made use of the nucletide sequence of the ribosomal RNA as an evolutionary time clock.

It is widely known that the rRNA sequences; is present in all organisms, functions differently in various organisms, is involved in protein synthesis, can be align between two organisms and can change gradually over a long period, hence this made it a good tool to determine evolutionary distinctiveness.

You might be interested in
What process occurs during cellular development as the cell changes into a specific type of cell with specialized functions?
Fudgin [204]

Answer: The answer is C which is differentiation

3 0
3 years ago
Read 2 more answers
What organism consumes primary consumers
Lapatulllka [165]

Answer:

Secondary consumers.

Explanation:

In a trophic pyramid, there are conventionally four levels. From the bottom they are: Producers, Primary Consumers: Secondary Consumers, and at the top we have tertiary consumers. Each level generally consumes animals in the level below it. Producers consist of plants.

7 0
3 years ago
Thigmotropism is a plants growth response to ____.
n200080 [17]
Light aka the sun I know for a fact
8 0
3 years ago
Read 2 more answers
Chromosome 11 is made of over ( )million base
Natalka [10]

Answer:

Chromosome 11 is made of over

⇒ 130 million base pairs.

Approximately  ⇒ 2000 genes are found on chromosome 11

7 0
3 years ago
Molecular anthropology ___________________ Question 1 options: uses genetic analysis of a DNA sequence to assess evolutionary li
kari74 [83]

Answer:

The correct answer is ''uses genetic analysis of a DNA sequence to assess evolutionary links.''

Explanation:

Molecular anthropology is a relatively recent branch, it refers to the study of biological phenomena (genetic study) at molecular levels, that is, biochemical, it allows us to understand and expand our knowledge about the evolution of the species and the complex phenomena of microevolution . It is closely related to other fields of anthropological study, among which we can mention primatology and genetics.Through molecular anthropology we are more aware of kinship, therefore, we can know human evolution over the centuries .

7 0
3 years ago
Other questions:
  • Which of the following is expected to increase due to change climate
    6·2 answers
  • Water vapor and carbon dioxide in Earth's
    13·1 answer
  • A living cell is placed into a hypotonic solution . Compare the solute and solvent concentration inside the cell with the concen
    10·1 answer
  • DNA is copied, in a process called _______, so that a cell's DNA can be passed on to its daughter cells. A. recombination B. re
    5·2 answers
  • The____era encompasses 90% of earths history.
    15·2 answers
  • I need help with this question for Living environment
    12·1 answer
  • Which sequence of events best describes the current theory of the origin of life on Earth?
    9·2 answers
  • California’s rice fields are _______.
    10·2 answers
  • 13. Which DNA strand can base pair with this DNA strand A-T-G-C-T-A ?
    7·1 answer
  • Identify the correct number of protons, neutrons, and electrons of an element with the following information
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!