Yr 10 Genetics

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

The haploid number of human chromosomes is

• 11
• 12
• 23
• 46

The diploid number of human chromosomes is

• 23
• 46
• 92

The structure that holds two chromosomes together until they separate for cell division is the

• chromatid
• chromatin
• centromere
• cytoplasm

The structures labeled B are

• centrioles
• chromatids
• centromeres
• chromopheres

The structure labeled A is a(n)

• chromatid
• centriole
• centromere
• chromophere

The union of egg and sperm to form a new offspring is

• zygote
• fertilization
• homologous pairing
• meiosis

The number of chromosomes found in a human somatic cell is ___

• 36

• 46

• 23

• 2

Chromosomes 1-22 are collectively called what?

• autosomes
• telostones
• aminocytes
• chromatin

What are the yellow "beads" that DNA is coiled around?

• Centromeres
• Telomeres
• Histones
• Chromatin