Some species of Chondrichthyes (the class that includes sharks, skates, and rays) produce eggs encased in a tough, leathery pouch (commonly called a “mermaid’s purse”). These eggs are often laid in safe, protected waters by the mother. When the offspring hatches out of the egg, the case may wash up on the beach. (If you enjoy beachcombing, keep an eye out for these on our Texas coast!) The reproductive strategy demonstrated by these species is 

Which is a correct usage of phenotype and genotype?  

In salmon populations, both dominant males and “sneaky” jacks exhibit adaptations that increase their evolutionary fitness. Dominant males are large and have a structure on their heads known as a kype that helps them to fight other males. Sneaky jacks are small and resemble females. Because both forms persist in salmon populations, it would be most correct to say that these populations are regulated by ____________. 

Match the mutation with its description 

The diploid cells of an animal contain ________ alleles per gene located on autosomes. Assume the animal has the normal number of chromosomes. 

Which of the following amino acids is NOT coded for by the following DNA sequence?  CAGCATGACCTAATG  

Match the individual(s) with the correct scientific contribution. Answers may be used more than once. 

RNA which is a complementary copy of a gene is 

The below image represents an atom of a specific hypothetical element and its own cation. Which image represents the cation?  M represents the cation  L represents the cation  What supports your choice?   Cations are larger than their neutral atom Cations are smaller than their neutral atom   Why does this occur?   Because cations lose electrons from the outer most shell, the remaining electrons have a stronger attraction to the nucleus and are pulled closer, thereby making the ion small Because cations gain electrons, the incoming electrons will be repelled by the existing electron and therefore the shell will expand to accommodate them

The Blinn College Writing Center Dos and Don’ts of Academic Writing handout recommends using pretentious language and euphemisms as a way of increasing formality in one’s writing.