Name two evolutionarily significant benefits of meiosis that are not present in mitosis
What will be an ideal response?
reshuffling of homologous chromosomes and crossing over
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Gap junctions and plasmodesmata have what feature in common?
A. They both allow direct transport of materials between cells. B. They both are made up of protein subunits located in the plasma membrane. C. They are both found in plant cells. D. They both attach to the cell's cytoskeleton.
A garter snake attacking a banana slug is an example of ________
a. classical conditioning b. habituation c. a fixed action pattern d. instinctive behavior e. imprinting
Nitrogen-fixing bacteria convert atmospheric nitrogen (N2 gas) into ammonium (NH4). Why is this conversion important for life on Earth?
A. Nitrogen gas is toxic. B. Ammonium is an important cleaning agent. C. Nitrogen gas leads to global warming. D. Ammonium is a very important plant nutrient.
Linked genes are genes that _______.
A. reside on the sex chromosomes B. have the same alleles residing on them C. are on the same chromosomes D. govern traits (such as hair texture and hair color) that are functionally related