Bio Midterm

Who is the father of genetics?

Gregor Mendel
What did Gregor Mendel work with?

Pea Plants
Define Dominant

trait that masks another
Define recessive

trait that is masked by dominant ones
Define homozygous versus heterozygous

same allele in homo, hetero is different
Define phenotype

appearance due to genotype
Define genotype

genetic makeup
What is the probability of having three girls in a row?

50%
In a dihybrid cross what is the phenotypic ratio?

9:3:3:1
What is the difference between incomplete dominance and codominance?
- Incomplete- mix of two alleles ie pink rose
- Codominance- both alleles are expressed ie spotted cat
Define diploid and give an example

2 autosomes for each homologous pair, ie every cell in a human except sperm and egg
Define haploid and give an example

Only have one set of chromosomes- ie sperm and egg
Compare/Contrast Mitosis and Meiosis
-funcion in animals
-# of division sequences
-# of resulting cells
-Chromosome # in resulting cells
- Mitosis
- - cell growth
- -one division
- -two new cells
- -forty-six chromosomes
- Meiosis
- -reproduction, formation of gametes
- - two divison sequences
- -four new cells
- -twenty-three chromosomes

Author

xodorkydancerox

20769

Card Set

Bio Midterm

Description

questions

Updated

2010-05-26T03:18:35Z

Show Answers