bio 1201 gregg exam 3 UPDATED
ACTUAL Questions and CORRECT
Answers
the units of heredity and are made up of segments of DNA - CORRECT ANSWER - genes
how many chromosomes do humans have in the nucleus of their somatic cells? - CORRECT
ANSWER - 46 chromosomes (23 pairs)
the two chromosomes in each pair are called... - CORRECT ANSWER - homologous
chromosomes/homologs
each pair of homologous chromosomes includes... - CORRECT ANSWER - one
chromosome from each parent
what does meiosis result in - CORRECT ANSWER - 4 haploid daughter cells
what does meiosis 1 do - CORRECT ANSWER - separates homologous chromosomes
when does crossing over and synapsis occur - CORRECT ANSWER - prophase 1
what does meiosis 2 do - CORRECT ANSWER - separates sister chromatids
mitosis vs meiosis - CORRECT ANSWER - Mitosis: one division forming 2 identical cells
(clones); Meiosis: two divisions forming 4 genetically different cells
meiosis 2 is similar to mitosis because... - CORRECT ANSWER - sister chromatids
separate
, how do different alleles occur - CORRECT ANSWER - through mutation
what 3 things contribute to genetic variation - CORRECT ANSWER - crossing over,
independent assortment, random fertilization
when does independent assortment occur? - CORRECT ANSWER - metaphase I of
meiosis
random fertilization - CORRECT ANSWER - any sperm can fertilize any egg
the mating of 2 true-breeding varieties - CORRECT ANSWER - hybridization
p generation - CORRECT ANSWER - true-breeding parents
f1 generation - CORRECT ANSWER - hybrid offspring of the P generation
f2 generation - CORRECT ANSWER - offspring of the F1 generation
alternative versions of a gene - CORRECT ANSWER - alleles
the specific spot where a gene resides on a chromosome - CORRECT ANSWER - locus
two alleles for a heritable character separate during gamete formation and end up in different
gametes - CORRECT ANSWER - law of segregation
organism with two identical alleles for a character - CORRECT ANSWER - homozygote
ACTUAL Questions and CORRECT
Answers
the units of heredity and are made up of segments of DNA - CORRECT ANSWER - genes
how many chromosomes do humans have in the nucleus of their somatic cells? - CORRECT
ANSWER - 46 chromosomes (23 pairs)
the two chromosomes in each pair are called... - CORRECT ANSWER - homologous
chromosomes/homologs
each pair of homologous chromosomes includes... - CORRECT ANSWER - one
chromosome from each parent
what does meiosis result in - CORRECT ANSWER - 4 haploid daughter cells
what does meiosis 1 do - CORRECT ANSWER - separates homologous chromosomes
when does crossing over and synapsis occur - CORRECT ANSWER - prophase 1
what does meiosis 2 do - CORRECT ANSWER - separates sister chromatids
mitosis vs meiosis - CORRECT ANSWER - Mitosis: one division forming 2 identical cells
(clones); Meiosis: two divisions forming 4 genetically different cells
meiosis 2 is similar to mitosis because... - CORRECT ANSWER - sister chromatids
separate
, how do different alleles occur - CORRECT ANSWER - through mutation
what 3 things contribute to genetic variation - CORRECT ANSWER - crossing over,
independent assortment, random fertilization
when does independent assortment occur? - CORRECT ANSWER - metaphase I of
meiosis
random fertilization - CORRECT ANSWER - any sperm can fertilize any egg
the mating of 2 true-breeding varieties - CORRECT ANSWER - hybridization
p generation - CORRECT ANSWER - true-breeding parents
f1 generation - CORRECT ANSWER - hybrid offspring of the P generation
f2 generation - CORRECT ANSWER - offspring of the F1 generation
alternative versions of a gene - CORRECT ANSWER - alleles
the specific spot where a gene resides on a chromosome - CORRECT ANSWER - locus
two alleles for a heritable character separate during gamete formation and end up in different
gametes - CORRECT ANSWER - law of segregation
organism with two identical alleles for a character - CORRECT ANSWER - homozygote
