If 2n = 20, how many chromosomes are present in each cell in prophase ii of meiosis?

If a homologous pair of chromosomes fails to separate during meiosis i, it means that

Two ways that the members of the two domains of prokaryotes differ are in the what?

Which organism contributes to soil formation in primary succession? A) lichens B) grass C) small plants D) trees

Where would you be most likely to find the oldest rocks on Earth? in the middle of the highest mountains in the middle of the continents at the outer edges of oceanic crust in the middle of the oceans

What is a major element found in chlorophyll

A species of butterfly has alleles for wing color that are either blue or orange. When a blue butterfly and an orange butterfly mate, their offspring have wings that are both blue and orange. Explain the process through which wing color is expressed.

Low blood levels of oxygen can bring on? A. Sneezez B. Hiccups C. Coughs D. Sighs

How do human activities increase the occurrence of species extinction?

Describe Coriolis effect and explain why it affects ocean currents.

If the original cell has 46 chromosomes how can each daughter cell also have 46 chromosomes