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Chromosomes
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Q.1
What does the notation TT mean to a geneticist?
two dominant alleles
heterozygous alleles
at least one dominant allele
one dominant and one recessive allele
Q.2
Autosomes are
chromosomes found in autotrophs, only
chromosomes that automatically correct all errors in the DNA
chromosomes that determine traits other than sex
chromosomes that determine the sex of the individual
Q.3
The 2 male sex chromsomes are _____.
XY
XX
Q.4
An organism’s genotype is its
stem height
feather color
genetic makeup
physical appearance
Q.5
Walther Flemming noticed chromosome in the larvae of .........................
Tadpole
Salamanders
Bacteriophage
Amoeba
Q.6
The term “chromosomes” literally means
Inherited bodies
Twisted threads
Coloured bodies
Shining threads
Q.7
The substance that chromosomes are composed of is called
nucleosomes
DNA
chromatin
histones
Q.8
Haploid in the number of chromosomes they contain (example: sperm or egg)
somatic cells
muscle cells
gametes
neurons
Q.9
Made of chromatin and become visible during cell division
chromosomes
histones
mitochondria
nucleosomes
Q.10
Determine the sex of an individual and are represented by XX or XY
sex chromosomes
autosomes
somatic cells
diploid cells
Q.11
Body cells are also known as
prokaryotic cells
somatic cells
gametes
sperm or egg
Q.12
A segment of DNA
nucleosome
gene
histone
chromatin
Q.13
A histone core with DNA wrapped around it is called a
somatic cell
gene
centromere
nucleosome
Q.14
Chromosomes contain genetic information in the form of
DNA
histone
centromere
karyotypes
Q.15
A chromosome is composed of two identical sister
centromeres
chromatids
autosomes
somatic cells
Q.16
The disc shaped protein core that DNA wraps around is called
histone
nucleosome
chromatin
gene
Q.17
Cells that contain two sets of chromosomes (example:=are called
gametes
haploid
diploid
chromatin
Q.18
A picture or image of a person's chromosomes taken through a microscope
pedigree
centromere
karyotype
none are correct
Q.19
Sister chromatids are held together by a
histone core
chromatin
nucleosome
centromere
Q.20
Gametes that contain one set of chromosomes (example: n =are called
diploid
autosomes
haploid
somatic cells
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