Author Question: What research advantage is present when studying behavioral differences in monozygotic twins? ... (Read 80 times)

Pineapplelove6 · **on:** Jun 22, 2018

What research advantage is present when studying behavioral differences in monozygotic twins?

Since the twins have different genotypes at birth, behavioral differences can
more likely be attributed to nature rather than nurture.
Since the twins maintain identical genotypes throughout their lifetimes,
behavioral differences are 100 percent attributable to differences in their
environments.
Since the twins have identical genotypes at birth, behavioral differences can
more likely be attributed to differences in their environments.
Since the twins are born with identical phenotypes, behavioral differences will
also be identical.

Question 2

Dizygotic twins are produced when:

two ova are fertilized by a single sperm.
one ovum is fertilized by one sperm and then splits to form two clusters.
two ova are fertilized by two different sperm at roughly the same time.
one ovum is fertilized by two sperm and then splits to form two clusters.

morrie123456 · **Reply #1 on:** Jun 22, 2018

Answer to Question 1

Since the twins have identical genotypes at birth, behavioral differences can
more likely be attributed to differences in their environments.

Answer to Question 2

two ova are fertilized by two different sperm at roughly the same time.