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WHere doe genes come

Where do genes come from?

QuestionAnswer
How many chromosomes do humans have? 23 pairs
Where do the pairs come from? 1 from each parent
What do you call 2 chromosomes that code for the same traits? homologous
Who commonly have 2 X chromosomes? females
Who commonly have X and y chromosomes? females
Which parent determines the sex of the offspring? fathers, mom always give X chromos, dads can give X or Y
How many chromosomes do egg and sperm cells have? 23 single sets
What do you call it when 2 pairs of chromosomes exchange bits of DNA when they divide? Genetic recombination
What DNA is passed on from mother to child w/o any recombination at all? mitochondrial DNA
What do you call the process of merging DNA from sperm and egg? fertilization
Created by: russcrick
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