In the mid-twentieth century, researchers discovered that genes are made of ____________________ and that this
molecule is part of cellular structures known as ____________________. Fill in the blank(s) with the appropriate word(s).
ANSWER: DNA, chromosomes
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The nuclear envelope is a single lipid layer.
Answer the following statement true (T) or false (F)
Recombination between two Alu elements results in deletions. In humans these have often been associated with specific disorders. In a recent study, researchers compared Alu recombination-mediated deletions of humans and chimpanzees
They identified 492 human-specific deletions of this type. Why is this finding important? A) It shows that humans are not as genetically close to chimpanzees as researchers previously thought. B) It shows how much the chimpanzee genome has changed since the divergence of these two lineages. C) It shows that the time of divergence of the two lineages is much older than was previously thought. D) It shows that more deletions have occurred in humans than in chimps. E) It demonstrates the importance of Alu recombination in shaping genome divergence.
The group of white blood cells that lacks visible granules in the cytoplasm is called ________. Included in this group are monocytes and lymphocytes
Fill in the blank(s) with correct word
Which term most precisely describes the cellular process of breaking down large molecules into smaller ones?
A) catabolism (catabolic pathways) B) metabolism C) anabolism (anabolic pathways) D) dehydration