One of the important assumptions made during the study of heritability in twins is that monozygotic twins share all

their ____________________ and their ____________________.Fill in the blank(s) with the appropriate word(s).


genes; environment

Biology & Microbiology

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Which type of signal only operates over very short distances?

a. chemical b. tactile c. electrical d. visual e. acoustical

Biology & Microbiology

Which of the following is an evolutionary history of the relationships between various species?

a. biology b. systema c. taxonomic filing d. phylogeny

Biology & Microbiology

The epididymis is where what happens?

What will be an ideal response?

Biology & Microbiology

In the laboratory, fruit flies (Drosophila) were artificially selected for the number of bristles on their bodies. One population (R) was selected for low numbers of bristles, a second population (S) for high numbers of bristles.In order for the scientists to artificially select Drosophila for their number of bristles,

A. genetic variation had to be present in the population. B. they had to study the population for millions of years. C. the number of bristles in each Drosophila had to be random. D. they had to induce mutations into their populations of Drosophila. E. dramatic mutations had to be produced by the selection.

Biology & Microbiology