DNA/Chromosomes Question Preview (ID: 57884)


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how many homologous pairs of chromosomes can be found in most human cells?
a) 12
b) 23
c) 46
d) 92

what is DNA made up of?
a) deoxyribose, phosphates, nitrogen bases
b) glucose, carbon, nitrogen bases
c) chromosomes, sugar, protein
d) deoxyribose, amino acids, protein

the parts of a chromosome that control inherited traits
a) centromeres
b) chromatids
c) gametes
d) genes

the sides of the DNA molecule (the backbone) are made up of sugar molecules alternating with
a) deoxyribose molecules
b) phosphate molecules
c) nitrogen molecules
d) hydrogen molecules

what is a karyotype?
a) a type of gene which codes a protein
b) a picture of DNA
c) a rock band
d) organized display of an organism's chromosomes

order from largest to smallest: DNA, gene, chromosome
a) gene, chromosome, DNA
b) chromosome, gene, DNA
c) DNA, gene, chromosome
d) chromosome, DNA, gene

what do genes code for?
a) binary
b) your personality
c) DNA
d) proteins

a gene is a segment of _______?
a) protein
b) DNA
c) cell
d) genes

where in the nucleus are genes located?
a) clonosomes
b) protein
c) chromosomes
d) mitochondria

where in the cells are genes located?
a) cytoplasm
b) nucleus
c) mitochondria
d) cell wall

what are many traits determined by?
a) genes
b) cells
c) your pets
d) nothing

what does inherited mean?
a) when the environment determines your traits
b) a collection of assets you recieve
c) passed through generations
d) genes and DNA

what are the four nitrogen bases? (only their letters)
a) a, b, c, d
b) a, c, f, x
c) a, g, c, t
d) a, u, c, t

one nitrogen base is bonded with another nitrogen base by
a) hydrogen atoms
b) carbon atoms
c) oxygen atoms
d) nitrogen atoms

when bonds happen only between A and T and C and G, we refer to this as the
a) hydrogen bonding rule
b) law of bonding
c) base-pair rule
d) pairing up

the process by which DNA copies itself
a) synthesis
b) replication
c) copying
d) duplicates

the genetic code and traits are determined by the ______ of the nitrogen bases
a) size
b) length
c) order
d) appearance

adenine, guanine, cytosine, and thymine are called _____bases
a) nitrogen
b) hydrogen
c) oxygen
d) carbon

deoxyribose is a type of
a) sugar
b) lipid
c) nucleic acid
d) protein

nitrogen base pairs will only connect to _____on the DNA backbone
a) phosphate
b) sugar (deoxyribose)
c)
d)

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