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
vampirchik [111]
2 years ago
8

A life-form from another universe is found to have nucleic acid which includes six different bases - R,S,T,X,Y and Z. The percen

tage composition of R,S and T is always the same, and the percentage composition of X,Y and Z is always the same. Propose a reasonable hypothesis regarding the structure of the nucleic acid.
Biology
1 answer:
nalin [4]2 years ago
4 0

R, S, and T always have the same percentage composition, while X, Y, and Z always have the same percentage composition. Chargaff's rule is then a viable theory that can be used in this situation.

  • The DNA of any species of any organism must have a 1:1 stoichiometric ratio of the purine and pyrimidine nucleotides, according to Chargaff's principles.
  • More specifically, the ratio of guanine and adenine to cytosine and thymine must be the same. This pattern is present in both the strands of the DNA.
  • The formula comes as A + G = T + C = 1
  • In this universe there are six base pairs R,S,T,X,Y and Z. composition of R,S and T is always same thus these can be considered the purines.
  • The percentage composition of X,Y and Z is always the same thus these can be considered the pyrimidines.
  • applying Chargaff's rule to these bases:

R + S + T = X + Y + Z

= 1:1

Thus, the nucleic acid will contain six base pairs where bonds are formed between RX, SY and TZ.

learn more about Chargaff's rule here:brainly.com/question/12148299

#SPJ1

You might be interested in
A . asexual reproduction and genetic sameness
IRINA_888 [86]

Answer:

B?

Explanation:

8 0
3 years ago
The illustration below shows the steps of meiosis I. What is the step that is labeled D? metaphase I metaphase II telophase II t
WITCHER [35]

The right answer is metaphase II.

The process is performed in two nuclear and cytoplasmic divisions, called first and second meiotic division or simply meiosis I and meiosis II. Both include prophase, metaphase, anaphase, and telophase. First division prophase is long and consists of 5 stages: leptotene, zygotene, pachytene, diplotene, and diakinesis. It is at this point that genetic recombination takes place at the level of chiasmus.

During meiosis I, the members of each homologous pair of chromosomes are paired during prophase, forming bivalents. During this phase, a protein structure, called synaptonemal complex form, allows recombination between homologous chromosomes. Subsequently, a large condensation of the bivalent chromosomes occurs and go to the metaphase plate during the first metaphase, resulting in the migration of n chromosomes to each of the poles during the first anaphase. This reduction division is responsible for maintaining the number of chromosomes characteristic of each species.

In meiosis II, as in mitosis, the sister chromatids comprising each chromosome are separated and distributed between the nuclei of the daughter cells. Between these two successive steps, there is no DNA replication. The maturation of the daughter cells will result in the gametes.

7 0
3 years ago
Read 2 more answers
Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made of ________ and pulls sister
Veseljchak [2.6K]

Answer:

Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made of "microtubules" and pulls sister chromatids apart, whereas the contractile ring is made of "actin filaments" and required for the separation of daughter cells at the end of the mitotic phase of the cell cycle.

Explanation:

The three chief organizational apparatuses of the cytoskeleton are microtubules (formed by tubulins), microfilaments (formed by actins) and intermediate filaments. All three apparatuses cooperate with each other non-covalently. The cytoskeleton is composed of protein filaments and is found throughout the inside of a eukaryotic cell. The cytosol is the main component of the cytoplasm, the fluid that fills the inside of the cell. The cytoplasm is everything in the cell except for the cytoskeleton and membrane-bound organelles.

3 0
4 years ago
Why algae in the ocean can have a very high NPP and a very low amount of stored biomass
USPshnik [31]
The algae in the ocean have a very high Net Primary Productivity (NPP) and a very low amount of store biomass. This is because THE GROWTH RATE OF ALGAE IN THE OCEAN IS HIGH. The store biomass is low because THE PRIMARY CONSUMERS FEED ON THESE ALGAE THUS LOWERING THE BIOMASS AMOUNT. The production of biomass is related to the NPP.
7 0
4 years ago
The diagram represents the functional unit of a nervous system. Which structure secretes a neurotransmitter? 1. structure A 2. s
maks197457 [2]
Can't see the structures so we can't answer your question
8 0
4 years ago
Other questions:
  • An Asian elephant has a weight of 52,900 newtons. This enormous weight is balanced on four feet. In a circus act, these elephant
    6·1 answer
  • What is the description of insertion in science terms and what is the outcome
    5·1 answer
  • Briefly describe the structure of cardiac muscle
    12·1 answer
  • The full extent of my __________ skill is preparing scrambled eggs on toast.
    12·1 answer
  • What best explains the trend shown?
    11·2 answers
  • Some members of this protozoan group cause red tide
    6·1 answer
  • Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas.
    9·2 answers
  • You are working with a patient in the ER room that is in severe pain from getting hit by someone in an automobile that did not p
    12·1 answer
  • What is the difference in result between<br> mitosis and meiosis?
    6·1 answer
  • - The part that is responsible for regulating involuntary processes in the body.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!