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Pre-Test
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1
Sexual reproduction _____.
A)requires haploid gametes
B)results in a diploid zygote
C)creates offspring that are genetically different from the parents
D)All of these
2
Once duplicated, a chromosome is composed of two identical parts called _____.
A)sister chromatids
B)centromeres
C)homologous chromosomes
D)chiasmata
3
Sexual reproduction contributes greatly to the process of _____.
A)evolution
B)metabolism
C)organization
D)growth and repair
4
The combining of chromosomes from genetically different gametes occurs during _____.
A)crossing over
B)synapsis
C)meiosis II
D)fertilization
5
In animals the haploid cells produced by meiosis mature and become _____.
A)spores
B)zygotes
C)gametes
D)diploid





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