How does mutation, random fertilization, and crossing over contribute to genetic variation?
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Ответ:
random fertilization also causes variation as different setup of genes meets with another different...so chances of variation increases !
and third crossing over is in meiosis when chiasmata formsso in this two homologous chromosome attach to each other and on separation ... some part exchange so leads to variation !
Ответ:
Protein is the building block of your muscles. Therefore, eating adequate amounts of protein helps you maintain your muscle mass and promotes muscle growth when you do strength training.