Except in rare cases, genes are usually passed from generation to generation within a species. This process is called:  

A.  horizontal gene transfer
B.  vertical gene transfer
C.  transgenesis
D.  synteny


B.  vertical gene transfer

Biology & Microbiology

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Cells differentiate by

A) expressing different subsets of genes. B) expressing the entire genome, then silencing some genes. C) activating all of the DNA that encodes protein. D) becoming stem cells.

Biology & Microbiology

What developmental event was key to the evolution of the chordates, by forming the notochord and dorsal nerve cord?  

A.  morphogenesis B.  organogenesis C.  gastrulation D.  neural crest formation E.  neurulation

Biology & Microbiology

Which of the following would lead to the highest ecological footprint?

a. a country with a low per capita footprint and low population size b. a country with a high per capita footprint but low population size c. a country with a high per capita footprint and high population size d. a country with low per capita footprint and high population size e. a and c

Biology & Microbiology

In which order were the key features of complex multicellularity likely to have appeared?

A. cell adhesion, cell communication, regulated growth and development B. cell communication, cell adhesion, regulated growth and development C. regulated growth and development, cell communication, cell adhesion D. regulated growth and development, cell adhesion, cell communication

Biology & Microbiology