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WorksheetsChromosomes, Karyotypes, DNA, and Cell Cycle
Total questions: 20
Worksheet time: 15mins
In humans, chromosome pairs 1-22 are referred to as
A karyotype
Sex chromosomes
Autosomes
Sister chromatids
What is the structure that holds the sister chromatids together called?
Sister chromatids
Homologous chromosomes
Autosomes
Centromeres
Where in a cell are chromosomes located?
mitochondria
nucleus
ribosomes
endoplasmic reticulum
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
Sister chromatids
Homologous chromosomes
Centromeres
Autosomes
Strawberries are octoploid, which means that each nucleus has this many copies of each chromosome.
2
4
6
8
Humans are diploid, which means that each nucleus has this many copies of each chromosome.
2
4
6
8
All of the following are techniques to identify homologous chromosomes in a karyotype EXCEPT:
Banding patterns from staining
Weight of the chromosomes
Size of the chromosomes
Centromere position
Is this karyotype a male or a female?
male
female
cannot be determined
Genetically normal humans have how many pairs of chromosomes?
23
46
92
The molecular structure of DNA was first discovered in 1953 by which of the following?
Isaac Newton and Rachel Carson
James Watson and Francis Crick
How many strands of DNA are there in a double helix?
1
2
3
4
The rungs of a DNA molecule are made up of
Nitrogen bases
Deoxyribose sugar
Phosphates
The sides of a strand of DNA are made up of alternating deoxyribose sugars and
Nitrogen bases
Phosphates
Nucleosides
This process produces four daughter cells with half of the genetic information of the parent cell.
mitosis
meiosis
This process produces two daughter cells that are identical to the parent cell.
mitosis
meiosis
This process goes through each of the phases (prophase, metaphase, anaphase, telophase) twice.
mitosis
meiosis
This process occurs in body (somatic) cells.
mitosis
meiosis
This process occurs in sex cells (gametes).
mitosis
meiosis
What phase of the cell cycle does this image show?
anaphase
telophase
metaphase
prophase
What phase of the cell cycle does this image show?
cytokinesis
telophase
interphase
anaphase
