Final Review For Biology46 cards

Tagged as: biology, microbiology, biochemistry, fitness, medical, medicine, nursing, physics, pathology

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1

Compare and Contrast DNA with RNA:

RNA: single stranded, has uracil, codons, ribose found in both the nucleus and cell DNA:double stranded, has thymone, deoxyribose, found in the nucleus

2

What is a codon?

sequence of three bases of RNA



5

define translation:

formation of a protein at the ribose




9

what is a gene mutation?

change in a single gene

10

what is albinism?

inability to produce pigments


12

what do germ mutations affect?

reproductive cells


14

what are mutagens?

substances that cause mutations



17

what is a population sampling?

measures the frequency of certain traits


19

20

what is polydactylsim?

extra fingers or toes

21

what is PKU?

unable to synthesize an enzyme needed to break down phenelalanine


23

Who was karl landsteiner?

discovered blood types



26

what are polygenic traits?

traits that are determined by many genes

27

what is non disjunction?

failure of chromosomes seperate during mitosis and meiosis.

28

what is trisomy-21?

downs syndrome

29

a male with XXY has what?

klein felter syndrome


31

What are homologous structures?

similar but different in fucntion


33

What is convergent evolution?

two different species evolve structure to adapt the same enviroment

34



37

Define a population:

same species, same place, and same time

38

Define a gene pool:

all the alleles of all the genes of all the ind.

39

Define taxonomy:

science of grouping organisms on base of similarities.



42

What is binomial nomenclature?

the practice of giving organisms two names




46

List all the things modern taxonmists use to determine relationshops among organisms?

Chromosome structure, embryology, biochemical similarities, DNA