Small geographic areas with high concentrations of endemic species and a large number of endangered and threatened species are known as

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#Question id: 2738

#Unit 2. Cellular Organization

Which of the following function is not served by DNA packaging?

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#Question id: 34111

#Unit 2. Cellular Organization

A. 11-nm chromatin fibers consist of a string of nucleosomes.

B. 30-nm fibers have six nucleosomes/turn, which are organized into a two-start helix.

C. Histone H1, histone tails, and increased ionic strength all promote the formation of the 11-nm fiber.

D. Histone octamers are well conserved during replication, with H2A-H2B dimers and H32-H42 tetramers are.

Which of the correct combination of statements

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#Question id: 27968

#Unit 1. Molecules and their Interaction Relevant to Biology

As intermediates of the citric acid cycle are removed to serve as biosynthetic precursors, they are replenished by

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#Question id: 13048

#Unit 13. Methods in Biology

In HAT selection surviving cells synthesise nucleotides by means of:

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#Question id: 4895

#Unit 8. Inheritance Biology

What is the difference between a linkage map and a physical map?

a) Genetic maps are based on recombination frequencies, but physical maps are based on restriction digestion.

b) Physical DNA map describes the absolute position of genes on a chromosome while genetic map so variable

c) Genetic maps are important to identify the origin of diseases, whether they are inherited or arise due to a random mutation.