Question

value: 10
sperm and ova are ___.
a. diploid
b. haploid
value: 10
sperm and ova combine in the process of fertilization to form a ___.
a. diploid gamete
b. diploid zygote
c. haploid gamete
d. haploid zygote
e. diploid germ cell
value: 10
___ reduces the chromosome number from a diploid cell to two haploid cells.
a. meiosis i
b. meiosis ii
c. meiosis iii
d. meiosis iv
e. mitosis
value: 10
the allelic make of of an individual is called the ___.
a. phenotype
b. genotype
c. allelotype
d. holotype

Explanation:

1. Sperm and ova are gametes produced by meiosis, which results in haploid cells with half the chromosome number of somatic cells.
2. Fertilization is the fusion of a sperm (haploid) and an ova (haploid) to form a diploid zygote, restoring the full - set of chromosomes.
3. Meiosis I is the first division in meiosis where homologous chromosomes separate, reducing the chromosome number from diploid to haploid.
4. The allelic make - up of an individual is called the genotype, which represents the genetic constitution of an organism.

Answer:

1. b. haploid
2. b. diploid zygote
3. a. Meiosis I
4. b. Genotype