The cell in this figure is:

In a polymerase chain reaction, is a single stranded DNA molecule complementary to a region outside an STR locus; used as starting point for DNA polymerase.

You are studying a genetic trait in which homozygous for long when crossed with homozygous for short gives a heterozygous that is medium length. This mode of inheritance can be called:

Hydrophilic molecules

Domain ____________ includes Kingdom ________________, Kingdom _______________, and Kingdom Plantae.

In tomato plants, purple stems (P) are dominant to green (p), and red fruit (R)  is dominant to yellow fruit (r).  If a homozygous purple-stemmed, yellow-fruited plant is crossed with a homozygous green-stemmed, red fruited plant, what proportion of the first filial (F1) generation will have purple stems and red fruit?  

The main product of the Calvin cycle is:

In a DNA double helix, phosphate groups have covalent phosphodiester bonds with:

The longest phase of the cell cycle is:

The structure labeled “B” is a(n):