Question

question 1 of 11
what causes genetic variation between siblings?
each sibling inherits a random mixture of genes from each parent.
siblings receive identical sets of chromosomes from both parents.
genes from one parent dominate, causing variation.
environmental factors solely determine differences between siblings.

Explanation:

During meiosis, parents' chromosomes recombine and are randomly distributed to gametes. Siblings inherit different random combinations of genes from each parent, leading to genetic variation. Siblings don't receive identical chromosome sets. Gene - dominance is not the main cause of variation between siblings, and environmental factors are not the sole determinant; genetic inheritance is crucial.

Answer:

Each sibling inherits a random mixture of genes from each parent.