chapter 7 Flashcards
passing down of traits from generation to generation
heredity
characteristics animals and plants that are coded for by dna
traits
Dna codes for
height, eye color, Risk of certain diseases ,Hair color, skin color, facial features
___________ will have similar DNA sequencing to their parents
Offspring
order the bases are in
sequencing
portions of DNA that code for protiens
genes
there are parts of DNA that dont code for protien
true
Genes can be turned on or off by certain processes
gene regulation
every cell in the body contains its entire _________
DNA code
compressed DNA wrapped around DNA called histones
chromosomes
how many chromosomes do humans have (the only exception is sperm and egg cells which have 23)
46
most traits involve more than one gene coding for something
true
location of a specific gene on the chromosome that codes for a specific trait
gene locus
are represented by lower or capitol case letters (C=dominant l=ressesive
alleles
a variation of a gene
alleles
the genetic make up for a trait
genotype
physical characteristics based on genotype
phenotype
tool that predicts the traits that parents pass down to their kids
punett square
are dominant traits more common than common
no
Homozygous
Two of the same alleles
genotype ratios are different from phenotype ratios
true
heterozygous
having 2 different alleles
the dominant allele that is not completely expressed when the recessive allele is present
incomplete dominance
alleles working together: both traits are expressed but not blended
Co-Dominance
many genes involved in the expression of one trait
polygenic traits
traits that are more complex than mendelian genetics
non-mendelian genetics
