Research in behavioral genetics has shown that identical twins reared apart often have similar personality traits. this result s
uggests that ____ contribute(s) to personality. genetic inheritance environmental factors both genetic inheritance and environmental factors neither genetic inheritance nor environmental factors
<span>Research in behavioural genetics has shown that identical twins reared apart often have similar personality traits. This result suggests that both genetic inheritance and environmental factors contribute to personality. </span>
<span>Personality traits are under a significant degree of genetic influence, usually influenced by a very large number of genes but environmental influences also play a strong role. The environmental factors tend to make family members more different from one another, not more similar.</span>
46 unreplicated chromosomes- called daughter chromosomes - each one is essentially a chromatid. The parent cell had 46 double chromosomes (2 chromatids each) - which split into two in mitosis. This means that we need to divide 46 by 2 and we get 23.