Lab 7 Flashcards
Who documented a particulate mechanism of inheritance through his experiment with garden peas?
Gregor Mendel
Name 3 reasons Mendel choose to work with peas?
- available in many varieties
- easy to grow and get large numbers
- he control which plants mated with which (hybridization)
What is Mendel’s Law of Segregation
- allele pairs separate during gamete formation and randomly unite during fertilization
- each gamete has an equal chance of possessing either member of a pair of
homologous chromosomes
What is Mendel’s Law of Independent Assortment
alleles of different genes assort independently of one another during gamete formation
What is simple dominance?
If a pair of alleles on homologous chromosomes exhibit a a simple dominance relationship, the trait of the dominant allele shows in the phenotype (recessive allele is phenotypically invisible)
What is Lethal Inheritance?
inheriting a gene or allele combination that is fatal to the offspring
What is Incomplete dominance?
Neither allele dominates the other in a heterozygote; the phenotype is intermediate between that of the homozygotes
What is Codominance?
Two alleles are both expressed in the heterozygote, and both phenotypes are seen simultaneously
What is Transposable elements also known as
“jumping genes”
What is Transposable elements?
DNA sequences that move from one location on the genome to another
True or False
TEs are not found in almost all organisms (both prokaryotes and eukaryotes) and typically in large numbers
FALSE
THEY AREEEEEEE FOUND
True or False
TEs make up approximately 50% of the human genome and 90% of the maize genome
TRUE
LOOK OVER SLIDE 20 AND 21
they are pictures of chart i cant add ;(
IA and IB are________
and i is ___________
Codominant, recessive
*** i= blood type o
