general cell reproduction
All of the following are examples of ASEXUAL reproduction EXCEPT:
1. fertilization of an egg cell
2. budding
3. parthenogenesis
4. binary fission
5. fragmentation
1. fertilization of an egg cell
Which of the following choices promotes variation during prophase I due to exchange of material between homologous chromosomes?
1. mutation
2. random assortment
3. random fertilization
4. crossing over
5. nondisjunction
4. crossing over
The gain of an extra chromosome during meiosis results in a condition known as (choose 2 answers):
1. euploidy
2. trisomy
3. monosomy
4. anueuploidy
2. trisomy
4. anueuploidy
Triploids are usually sterile because:
1. they don't occur in nature.
2. they cannot undergo mitosis.
3. 1/3 of the chromosomes cannot pair up.
4. none of the chromosomes can pair up.
3. 1/3 of the chromosomes cannot pair up.
Humans exhibit which type of life cycle:
1. Alternation of generations
2. haploid (1N) life cycle
3. diploid (2N) life cycle
4. binary fission
3. diploid (2N) life cycle
Meiosis creates _____________ cells.
1. 2 genetically different haploid gametes.
2. 4 genetically different diploid gametes
3. 4 genetically different haploid gametes
4. 4 genetically identical haploid gametes
3. 4 genetically different haploid gametes
A CLONE can be produced by which 2 of the following?
1. meiosis
2. mitosis
3.binary fission
4. fertilization
2. mitosis and
3.binary fission