WorksheetsDNA & Chromosomes
Total questions: 41
Worksheet time: 1hrs 22mins
1. What does prokaryotic DNA look like?
They are numbered according to size.
A picture of chromosomes arranged in size order (might be bent over)
Lots of strands of DNA called chromosomes in a nucleus of each cell that look like a spiral staircase when you zoom in.
One circular strand of DNA free floating around the cell.
2. What does eukaryotic DNA look like?
Lots of strands of DNA called chromosomes in a nucleus of each cell that look like a spiral staircase when you zoom in.
A picture of chromosomes arranged in size order (might be bent over)
They are numbered according to size.
One circular strand of DNA free floating around the cell.
3. What is the definition of a karyotype?
Lots of strands of DNA called chromosomes in a nucleus of each cell that look like a spiral staircase when you zoom in.
They are numbered according to size.
A picture of chromosomes arranged in size order (might be bent over)
One circular strand of DNA free floating around the cell.
4. How are the numbers given to a chromosome and the size of the chromosome related?
Lots of strands of DNA called chromosomes in a nucleus of each cell that look like a spiral staircase when you zoom in.
They are numbered according to size.
A picture of chromosomes arranged in size order (might be bent over)
One circular strand of DNA free floating around the cell.
5. What's the definition of a chromosome?
Strands of DNA in the shape of a twisted ladder that carry genetic information from one generation to the next (each cell has all of the DNA code) wrapped around histones.
They are numbered according to size.
A picture of chromosomes arranged in size order (might be bent over)
One circular strand of DNA free floating around the cell.
6. Why is prokaryotic DNA called "circular?"
There is only one piece of DNA
It can move around anywhere in a cell and isn't held in by a nucleus
The piece of DNA starts and ends in the same spot
It looks like a squiggle
7. What is the shape of prokaryotic DNA?
There is only one piece of DNA
It can move around anywhere in a cell and isn't held in by a nucleus
The piece of DNA starts and ends in the same spot
It looks like a squiggle
8. Why is prokaryotic DNA called "free-floating?"
There is only one piece of DNA
It can move around anywhere in a cell and isn't held in by a nucleus
The piece of DNA starts and ends in the same spot
It looks like a squiggle
9. What is one way that the shape of eukaryotic DNA is described?
A twisted ladder
A circle
A squiggle
An earth worm
10. What is one way that the shape of a eukaryotic chromosome is described?
A twisted ladder
A circle
A squiggle
An earth worm
11. Which kind of cell has the most DNA?
Prokaryotic
Eukaryotic
Fungus
Bacteria
12. What is the name of the organelle that protects DNA in a eukaryotic cell?
cell wall
cell membrane
nucleus
mitochondria
13. Which kind of cell contains chromosomes?
rocks
bacteria
eukaryotic
prokaryotic
14. What is a histone?
loose DNA
A sticky protein that DNA that shouldn't be read wraps around
A sticky protein that DNA that should be read wraps around
A chromosome
15. Which of the following is true of chromosome #1 in a karyotype?
It is the longest chromosome
It is the shortest chromosome
It makes a baby be female
It makes a baby be male
16. What do the numbered chromosomes control?
Gender
Opinions
Acquired traits
Inherited traits
17. What do the X and Y chromosomes control?
Gender
Opinions
Acquired traits
Inherited traits
18. What two sex chromosomes does a female baby have on a karyotype?
XZ
XY
YY
XX
19. What two sex chromosomes does a male baby have on a karyotype?
XZ
XY
YY
XX
20. What do the seven genes on the Y chromosome all code for?
eye color
sleep
testosterone
estrogen
21. There are two of each chromosome in our body. Where does each one come from?
Sperm & egg or pollen & ovule
Mom's entire body & dad's entire body
The air
The nucleus
22. How do they match up the chromosomes in the karyotype?
They match the sperm and egg
Chromosomes are digitally arranged so that they are matched with their homologue or “partner” chromosome.
Chromosomes that are the same color are matched up
Magic
23. What are homologues?
Pollen and an ovule
The entire set of chromosomes in the body.
Chromosomes that are the same length, width, and have the same genes
Chromosomes that are the same thickness, color, and have the same genes
24. What is an ultrasound?
When chromosomes are covered in dye
A large needle that is used to pull amniotic fluid out of the womb
Dead skin cells
Using sound waves to generate a picture of a baby in the womb
25. What is an amniocentesis?
When chromosomes are covered in dye
A large needle that is used to pull amniotic fluid out of the womb
Dead skin cells
Using sound waves to generate a picture of a baby in the womb
26. What is covered in dye in order to make a karyotype?
A computer takes a picture
A large needle that is used to pull amniotic fluid out of the womb
Dead skin cells
Using sound waves to generate a picture of a baby in the womb
27. What are the names of the two procedures that have to be done on a pregnant woman in order to make a karyotype?
X-Ray & Amniocentesis
Ultrasound & X-Ray
X-Ray & Sonogram
Ultrasound & Amniocentesis
28. What gender is the baby with this karyotype?
female
male
29. What gender is the baby with this karyotype?
female
male
30. What gender is the baby with this karyotype?
female
male
28. What gender is the baby with this karyotype?
female
male
32. Which syndrome will the baby with this karyotype have?
Turner syndrome
Klinefelters syndrome
Edwards syndrome
Down syndrome
33. Which syndrome will the baby with this karyotype have?
Turner syndrome
Klinefelters syndrome
Edwards syndrome
Down syndrome
34. Which syndrome will the baby with this karyotype have?
Turner syndrome
Klinefelters syndrome
Edwards syndrome
Down syndrome
35. Which syndrome will the baby with this karyotype have?
Turner syndrome
Klinefelters syndrome
Edwards syndrome
Down syndrome
36. What is the definition of an inherited trait?
A picture of chromosomes
Double stranded DNA wrapped around histones
Something that your DNA codes for, something you do because your parent’s DNA told your body to do it.
Something you do because you imitate what you’ve seen others do.
37. What is the definition of an acquired trait?
A picture of chromosomes
Double stranded DNA wrapped around histones
Something that your DNA codes for, something you do because your parent’s DNA told your body to do it.
Something you do because you imitate what you’ve seen others do.
38. Is developing your singing skills an inherited or an acquired trait?
Interited
Acquired
Neither
Both
39. Can you change an acquired trait?
It depends on your age
No one has figured that out yet
Yes
No
40. Can you change some inherited traits?
Yes
No one has figured that out yet
It depends on your age
No
41. Is the size of your ears an inherited or an acquired trait?
Interited
Acquired
Neither
Both
