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4 Mar 2018
What are the two means by which meiosis introduces genetic variation into the gametes? When does each occur during meiosis? What are some facts/formulas regarding each that help to determine how much genetic variability can be introduced into the gametes by meiosis? What is a third way that genetic variation can be introduced into offspring, albeit only after gametes have been produced?
What are the two means by which meiosis introduces genetic variation into the gametes? When does each occur during meiosis? What are some facts/formulas regarding each that help to determine how much genetic variability can be introduced into the gametes by meiosis? What is a third way that genetic variation can be introduced into offspring, albeit only after gametes have been produced?
Trinidad TremblayLv2
5 Mar 2018
Related textbook solutions
Related questions
Which statements pertaining to genetic variability are correct? Check all that apply (note that wrong answers will be deducted from right answers)!
| Crossing over is defined by the exchange of chromosome pieces during metaphase one of meiosis. |
| If a germ cell (i.e. parent cell before meiosis) had only two pairs of homologous chromosomes (i.e. 4 chromosomes total) there are 2 possible combinations of maternal and paternal chromosomes in gametes. |
| Siblings produced by sexual reproduction are different because sperms are different from one another and eggs are different from one another, and the combination of an egg and sperm is basically unique. |
| Random fertilization means that all possible combinations of eggs and sperm are equally likely, i.e. it is pure chance which sperm fuses with which egg. |
| Individual chromosomes contain thousands of genes. This means that during each crossing over event, more than one gene is exchanged between paternal and maternal chromosomes. |
