Answer:
B) Thin platelets with chain folds at the faces
Explanation:
Crystalline polymer is folding together of molecular chain in an ordered way to form lamella. Polymer crystallize after cooling from evaporation of solvent. It affects the properties of the polymer such as thermal property.
Polymer on freezing becomes disorder forming an amorphous solid.
James Watson
Watson, Crick, and Rosalind Franklin
In the early 1950s, American biologist James Watson and British physicist Francis Crick came up with their famous model of the DNA double helix.
These substances are all mutagens.
<h3>What purposes do mutagens serve?</h3>
Many mutagens are employed to kill cancer cells because they are very harmful to growing cells. Chemotherapy may involve the use of intercalating drugs like daunorubicin and doxorubicin as well as alkylating agents like cyclophosphamide and cisplatin.
<h3>What consequences do mutagens have?</h3>
Additionally, lesions that increase the number of single-stranded regions in the genome may be introduced by mutagens that rapidly degrade DNA, leading to even higher frequencies of recombination.
<h3>How do mutagens cause harm?</h3>
A mutagen is a substance that can permanently alter cells' genetic material, perhaps resulting in heritable genetic harm or cancer.
To know more about Mutagens visit:-
brainly.com/question/1728110
#SPJ4
Answer: B. species of crab is living and reproducing successfully near hot hydrothermal vents at the bottom of the Pacific Ocean, while other crab species are unable to survive there.
Explanation: This species of crab <em>adapted</em> to their given habitat, while other couldn’t.