Biology Final Exam Vocab Flashcards
fermentation
C6H1206 (glucose) —> 2C2H5OH (ethanol) + 2CO2 + <e> (energy)</e>
Chromosome
helix of DNA condensed for easy mitosis or meiosis
RNA
single-stranded DNA
Nucleotide
3 parts base, ribose sugar, phosphate bond
full complement of DNA structural units: phosphate bond - ribose sugar (backbone) - nucleic acid
Metaphase
chromosomes line up on the equator of cell
Cellular respiration
C6H12O6 —>H20 +O2 + <E></E>
aerobic respiration
see respiration
genome
nuclear DNA per individual deoxyribose nucleic acid
gene
area of DNA that codes for a trait/protein
Prophase
You can see genetic material, chromosomes form, nuclear envelope dissolves
Enzyme
biological catalyst
Anaerobic respiration
Incomplete respiration that yields lactic acid or ethanol not CO2 and water
Base
A, T, C, G
Adenine, Thymine, Cytosine, Guanine
Cell cycle
G1, S, G2, Mitosis
Anaphase
spindle fibers shorten separating
Telophase
chromosomes are at poles, nuclear envelope starts to form, cytokinesis begins
Heterozygous
genes that are different
Phenotype
how genes express what they look like
Alleles
alternate term for genes
allele
alternative word for gene
nucleotide
a full complement of DNA structural
Cytokinesis
cell is cleaved into 2 separate daughter cells
Homozygous
genes that are the same
Genotype
expression of genes on a minute scale
what they are
Proteins
combinations of amino acids, what DNA codes for
expressions of genes assembling amino acid by using DNA template
PMAT
Prophase: chromosomes become visible, nuclear envelope disappears
Metaphase: chromosomes line up on the equator
Anaphase: spindle fibers shorten separating chromosomes at the centromere pulling them to separate poles
Telophase: separate nuclear envelope
Chromatin
nuclear material beginning to condense into chromosomes
Dominant
gene that will express in heterozygous form
Incomplete dominance
usually involves partial expression or mixing of heterozygous genes
Monohybrid
looking at the possibility of one gene expression from 2 parents
A, T, C, G, U
Nitrogenous bases of DNA/RNA
cytokinesis
separation of daughter cells after mitosis
Sister chromatids
copies of each other connected with a centromere
recessive
gene that does not express in heterozygous form
double helix
twisted ladder structure of the DNA molecule
locus
a specific spot on the DNA molecule
mitochondria
site of ATP synthesis for cellular respiration
xanthophll
brown pigments used in photosynthesis
sickle cell
novel mutation selected for in equatorial Africa providing some immunity to malaria
pectinase
enzyme used to dissolve pectin in fruit and release more juice from the cell
emporase or renin
enzyme we used in making cheese
crossing-over
“leggy” chromosomes share genetic information making hybrid chromosomes
sister chromatids
copies of chromosomes attached at centromere
carrier
mutated gene that only expresses in homozygous conditions if you have one gene you are a carrier but its not expressed
codominance
condition in heterzygous conditions results in both genes expressing e.g. blood type in humans SB
DNA
deoxyribose nucleic acid
independent assortment
chromosomes all go into separate gametes during meiosis
locus
a spot or nucleotide on a chromosome
homologous
pairs of chromosomes that come from different parents. These will never be connected by centromeres
centromere
area where sister chromatids are attached
TLC
thin layer chromatography - our photosynthesis lab
incomplete domiance
genetic condition that heterozygous condition results in mixed expression like red and white snapdragons result on pink
dihybrid cross
punnett square with 16 squares looking at statistical probability of 2 different genes from 2 different parents
family pedigree
chart that tracks the movement of genes through generations
interphase
phase of cell-cycle except mitosis
amino acid
expression of groups of 3 nucleic acids (codon) 20 of them building blocks of proteins
tetrad
group of 4 chromosomes consisting of one from each parent (2) that have replicated after S phase (4)
protease
enzyme that encourages DNA replication in PCR (polymerase chain reaction)