BIO T or F SECTION 2 _ Cytosine, guanine, thymine and adenine are referred to as phosphates.

DNA is in the shape of a helix.

A nucleotide is made up of a suqar, phosphate and two nitrogen bases.

Replication is performed prior to cell division.

Adenine always pairs with quanine.

Complementary base pairing matches up complementary sugars.

_The sides of the DNA molecule are made up of repeating nitroqen bases and suqars.

The letters that make up the DNA molecule code for qenes.

_ Replication results in two strands of DNA, each of which has half of the oriqinal strand.

Covalent bonds hold nitrogen bases together, forming the rings of the DNA ladder.

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation

What are the characteristics of subsystem