Mendel’s Law of Independent Assortment states that loci on nonhomologous chromos
ID: 18774 • Letter: M
Question
Mendel’s Law of Independent Assortment states that loci on nonhomologouschromosomes segregate independently, because they align randomly at
metaphase I of meiosis. Therefore humans with 23 pairs of chromosomes
may produce 223 different gametes if there is at least one heterozygous gene
on each chromosome. Since humans are estimated to have 30,000 genes, we
know that each chromosome has more than one heterozygous locus.
Assume that each chromosome has three heterozygous loci. How many
different gametes can be produced?
a. 223 b. 8 c. 823 d. 30,0002 e. 16*15*14******1
Explanation / Answer
Mendel’s Law of Independent Assortment states that loci on nonhomologous
chromosomes segregate independently, because they align randomly at
metaphase I of meiosis. Therefore humans with 23 pairs of chromosomes
may produce 223 different gametes if there is at least one heterozygous gene
on each chromosome. Since humans are estimated to have 30,000 genes, we
know that each chromosome has more than one heterozygous locus.
Assume that each chromosome has three heterozygous loci. How many
different gametes can be produced?
a. 223 b. 8 c. 823 d. 30,0002 e. 16*15*14******1
number of gametes =2^n
n= number of loci
number of gametes =2^3=8