What are the two roles of crossing over in meiosis?
What will be an ideal response?
The two roles are (1) to create the physical link between homologous chromosomes essential for proper chromosomal segregation, and (2) to generate genetic diversity in the population because, following recombination and segregation, sister chromatids are no longer identical.
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Human traits are controlled only by the genetic material found in the 46 chromosomes. Indicate whether the statement is true or false
Functions of joints
What will be an ideal response?
Based on diversity, life is divided into Bacteria, Archaea, and Eukarya. These groupings are called
A. kingdoms B. domains C. species D. class
In the United States, about 75% of children 7 years old and older have antibodies to astroviruses
Indicate whether the statement is true or false