WorksheetsProtein Syn, Cell cycle, Genetics Test Review
Total questions: 20
Worksheet time: 36mins
What happens during the S phase of the cell cycle?
DNA replicates (makes a copy)
nucleus divides
cell prepares for mitosis
Which part of the DNA structure provides the genetic code?
deoxyribose sugar
phosphate
hydrogen bond
Nitrogen bases
What do bacteria, protists, plant cells and animal cells all have in common?
Cell Wall
Nucleus
Flagella
DNA
Which statement describes why mice experience similar genetic diseases as humans?
mice have an omnivorous diet similar to that of humans.
mice have nucleotide sequences similar to those of humans.
mice go through embryonic stages similar to those of humans.
mice produce gametes through a process that is similar to that of humans.
What is the correct phenotype ratio when crossing two heterozygous parents in a dihybrid cross?
100% heterozygous
1:2:1
3:1
9:3:3:1
Why is it important to repair DNA before cells divide during Mitosis?
So that DNA synthesis is not needed again
So that 2 healthy daughter cells are produced
So that the cytoplasm can divide
The diagram shows the process of crossing over. Which claim about crossing over in chromosomes is best supported by the diagram?
Crossing over increases genetic diversity through deletion.
Crossing over decreases genetic diversity through mutation.
Crossing over increases genetic diversity by creating new combinations of genes.
Crossing over decreases genetic diversity by inserting nucleotides into gene sequences.
Which process creates new cells for growth and repair?
mitosis
meiosis
megaladon
mitochondria
How can mutations benefit a species?
they provide variation
they cause disease
they are not harmful
they are passed to offspring through gametes
Would a mutation in the DNA of a skin cell be passed on to an organism's offspring?
Yes, because any change to the DNA is passed on to the offspring
Maybe. Sex cells only use half of the body's genetic code. It might get the copy of a gene that wasn't mutated.
No. Only mutations that occur in the gametes (SPERM & EGG) are passed on to the offspring
Without knowing the animal, it would be hard to tell whether or not the mutation would be passed on.
Cancer is....
uncontrolled cell division
ATP inhibition
cell growth inhibition
The sister chromatids of each chromosome are separated (come apart) and move to opposite ends of the cell. Name that Stage!
Prophase
Metaphase
Anaphase
Telophase
