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The fusion of two haploid gametes—a process called fertilization—forms a ............
diploid zygote
When a cell, such as a somatic cell, contains two sets of chromosomes, it is said to be ............ (2n)
DIPLOID
When a cell, such as a gamete, contains one set of chromosomes, it is said to be ......... (n)
HAPLOID
Chromatin is composed of DNA and ..............
histone proteins
chromatids are attached at a point called a ..........
centromere
The two exact copies of DNA that make up each chromosome are called ........
chromatids
As a eukaryotic cell prepares to divide, the ........... become visible.
chromosomes
A ...........is a segment of DNA that codes for a protein or RNA molecule.
GENE
A prokaryote’s single DNA molecule is .............and is attached to the inner cell membrane.
circular
Gametes are formed by a third type “..........”
Meiosis
Eukaryotes grow, develop, repair, and asexually reproduce by another type “........”
Mitosis
Bacterial cells reproduce by one type .............
“Binary fission”.
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