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
ANTONII [103]
3 years ago
10

Which of the following can be determined directly from X-ray diffraction photographs of crystallized DNA?

Biology
1 answer:
nordsb [41]3 years ago
6 0

Answer:

A) the diameter of the helix

Explanation:

This is was measured during  the 3D  structure of DNA proposed by James Waston and Francis Crick in 1953. The x-ray  diffraction showed crossed shape of the X-ray films.The DNA appeared as two double strands structure.

The diameter of the DNA double helix is 20 Armstrong.

This  diameter is constant  because of the complementary pairing of bases.( purines with pyrimidines)

You might be interested in
Transcribe and translate the following strand.
Dmitriy789 [7]

Answer:

AAC Asn

AAA Lys

AAG Lys

AGU Ser

AGC Ser

AGA Arg

AGG Arg

G

GUU Val

GUC Val

GUA Val

GUG Val

GCU Ala

G

3 0
3 years ago
When pollen moves from the stamen of a flower on one plant to the pistil of the flower of a different plant this is called what?
Ainat [17]

Answer:

Its pollination

Explanation: The process by which pollen is delivered to the ovule of a gymnosperm or the stigma of an angiosperm. And a pollinator is an organism or other agents such as wind or water that transfers pollen from one plant to another; most commonly applied to organisms. hope this helps!

8 0
3 years ago
2. What does a cell need in order to live?
CaHeK987 [17]

Answer:

The most important things for a cell are oxygen in order to respire and Glucose, also for respiration. This is used in a process called glycolysis where the cell makes a chemical called ATP which is basically our energy. ... So basically a cell needs lots to stay alive.

Explanation:

6 0
3 years ago
Read 2 more answers
Which kingdom is MOST LIKELY to contain organisms that are decomposers?
mr_godi [17]
A. Kingdom fungi because fungi are in that kingdom and they decompose organisms
3 0
3 years ago
Read 2 more answers
The DNA of a prokaryote is arranged in a single coiled chromosome located in a region called the ____________ . Some prokaryotes
Varvara68 [4.7K]

Answer:

1. Nucleoid

2. Plasmid

Explanation:

Prokaryotes are groups of organisms characterized by the lack of a membrane-bound nucleus in their cell. Due to this, the genetic material (DNA) of prokaryotes are found naked i.e. not housed. The DNA of a prokaryote is arranged in a single coiled chromosome located in a region of the cell called NUCLEOID.

However, some prokaryotes e.g. bacteria carry genes on extrachromosomal pieces of circular DNA called PLASMID. Plasmids carry certain genes like antibiotic resistance genes.

7 0
2 years ago
Other questions:
  • Do prokaryotes cells have a nuclear membrane
    7·1 answer
  • On the electromagnetic spectrum,
    15·1 answer
  • Which is one purpose of cell division?. . A.. to create proteins. . B.. to expend energy. . C.. to help the organism grow. . D..
    7·1 answer
  • Whether during mitosis or meiosis, sister chromatids are held together by proteins referred to as cohesions. Such molecules must
    13·1 answer
  • Inherited characteristics that enhance an organism's ability to survive in a particular environment are called . These inherited
    8·1 answer
  • True or false?<br> Excess water will not get into the water supply for human drinking water.
    14·1 answer
  • What plant organelles can the plant cell not survive without?
    7·1 answer
  • In Griffith experiments why did the mouse live when injected with heat killed smooth and rough bacteria?
    10·1 answer
  • I need help plz I’ll mark you brainliest
    13·1 answer
  • What are the reactants for oxidation reaction?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!