Alicia and Kenny are fraternal twins. Patty and Penelope are sisters born four years apart. Which of these two pairs of siblings is most similar genetically?
A) Alicia and Kenny, the fraternal twins, are most similar genetically.
B) Patty and Penelope, the sisters, are most similar genetically.
C) The fraternal twins and the sisters are equal in genetic similarity.
D) The degree of similarity cannot be determined without DNA testing.
C) The fraternal twins and the sisters are equal in genetic similarity. Fraternal, or nonidentical, twins are conceived from separate eggs and separate sperm in the same way nontwin siblings are conceived. In both cases, the siblings share on average 50% of their genes.
2.1-41.________ are the type of twins formed when one zygote divided to make two zygotes.
A) Monozygotic twins
B) Dizygotic twins
C) both A and B
D) neither A nor B
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A) client-centered therapy. B) psychodynamic therapy. C) cognitive-behavioral therapy. D) existential-humanistic therapy.
In the United States, Australia, and Hong Kong, parent-adolescent communication and encouragement benefit youth and help to ________ them from depression, suicide, and low self-esteem
Fill in the blank with correct word