Unlike identical twins, fraternal twins

A. are always the same sex

B. are produced from two identical embryos

C. result from two eggs fertilized by two different sperms.

D. is wrong

A student examined a cell under a microscope and noticed that the cell does not have a nucleus. The student did not observe the cell reproducing and concluded that the cell could not reproduce because it was missing its nucleus.

You are studying a new species of plant similar to Mendel's pea plants. You are specifically interested in two genes that are located on two different chromosomes. In this plant, the gene for height has two alleles, T (tall) and t (short).

The atomic number of neon is 10. Therefore, which of the following is correct about an atom of neon? a. It has 8 electrons in its outer electron shell. b. It is inert. c. It has an atomic mass of 10 daltons. d. A and B only e.

During perspiration the entropy of the water А. The entropy of the water evaporated decreases and the entropy of the body decreases. B. The entropy of the water evaporated decreases and the entropy of the body increases. C.

How do plant and animal cells get energy/8617599/c1f1ad19? utm_source=registration

What role do insulator sequences play in the regulation of eukaryotic transcription?

A tube worm is a creature that lives within the dark, hot, and mineral-rich conditions of a hydrothermal vent. Deep-sea bacteria use chemosynthesis to convert energy into a chemical form.

What type of mutation always creates a stop codon?

Describe what is happening to the chromosomes during each sub-phase of Meiosis I and Meiosis II.

What accounts for genetic biodiversity existing in modern multicellular organisms?