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Sav [38]
3 years ago
12

In 1952, Rosalind Franklin took an X-ray photograph that revealed the structure of DNA. James Watson and Francis Crick followed

up on this discovery in 1953. They discovered that the molecule has a specific shape that can best be described as —
A. a single strand containing 4 different bases that vary depending on the type of DNA

B. ladder-shaped, containing 5 nitrogenous bases that bond to one another

C. triple-stranded, with bonds between each strand holding the three strands together

D. double-stranded and twisted, with bases bonded to other bases which hold the strands together
Biology
1 answer:
kari74 [83]3 years ago
4 0

Answer:D

Explanation:It can only be B or D but it has 4 not 5 so it has to be D!

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amm1812

Answer:

biotic and abiotic interactions

on gradpoint

Explanation:

6 0
3 years ago
Read 2 more answers
A mistake in DNA replication, in which the wrong base is placed in the growing DNA strand, can have profound effects on the desc
Klio2033 [76]

Answer:

DNA replication is the process in which the DNA is copied and it occurs during synthesis phase of the eukaryotic cell cycle. It begins with an enzyme breaking the bonds between complementary bases in DNA which exposes the bases inside  the molecules so they can be read by another enzyme and used to build two new DNA strands with complementary bases.

Explanation:

The original strand is: TAGCGTT

                                      ATCGCAA

The Mutated strand is: TGGCGTT

                                       ATCGCAA

<em>The replicated strand is: GAATCAC</em>

<em>                                           CTTAGTG</em>

5 0
3 years ago
All of the following statements about diploid cells are true except: *
Gemiola [76]

they contain half of a set of chromosome...that's jot true

3 0
3 years ago
Reactive oxygen species (ROS) are unstable, or reactive, compounds that result from the partial reduction of oxygen. ROS can cau
Genrish500 [490]

Answer: .OH, O2-, H2O2

Explanation:

Reactive oxygen species (ROS) are chemically reactive and unstable species containing oxygen. ROS are formed when oxygen is partially reduced, thus they are all radicals with very high reactivity, attacking membrane proteins such as ion channels etc

Examples include peroxides (H2O2), superoxide (O2-), hydroxyl radical (.OH)

6 0
3 years ago
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Which part of carol's nervous system gave her the strength to knock out the man's breath and run home faster than the wind?
mr Goodwill [35]
The nervous system is divided into several parts, and in this case, the answer is Sympathetic Nervous System.
SNS is responsible of the regulation of homeostatic organic mechanisms; such as fighting and running behaviors, heart rate, dilation of bronchi and pupils, and adrenal glands stimulation.
4 0
3 years ago
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