What is taxis? Can you provide an example

A polar cell moves between

In pea plants, round peas (R) are dominant to wrinkled peas (are). You do a test cross between a pea plant with wrinkled peas (genotype rr) and a plant of unknown genotype that has round peas. You end up with three plants, all which have round peas.

Explain how DNA, which is six feet long, can be stored in the nucleus of a tiny human cell.

How much oxygen do trees produce

Some speciea undergo long peiods of stability interrupted by geologically brief periods of signifficant change. During these brief periods, new species may evolve. This pattern of evolution is part of the concept of

Identify the substance in a vaccine that stimulates the immune system

A theory by which prokaryotes gave rise to the first eukaryotic cells. Chloroplasts in plants and mitochondrion in other eukaryotes are believed to have once been prokaryotic organisms engulfed by larger prokaryotic cells.

Which of the following is the most important factor in achieving sustainability? a. ending nonrenewable resource use b. agricultural practices c. resource management d. ending pesticide use

The type of RNA that ribosomes are made of.

The human genome contains 3.4*109 base pairs. The length of linker DNA in mammals is 50 base pairs. Approximately how many nucleosomes are required to organize the 10-nm-fiber structure of the genome?