Worksheets1st Nine Weeks Review
Total questions: 28
Worksheet time: 14mins
Please check all the statements that TRUE about mitosis below. THERE WILL BE MORE THAN ONE ANSWER!
Creates identical clones
Makes it harder for an organism to survive during a QUICK environmental change due to cloning and lack of heterozygosity.
It's asexual reproduction.
It only takes place when an organism is ALIVE
Which of the following are true statements regarding mitosis and meiosis? THERE WILL BE MORE THAN ONE ANSWER!
Mitosis creates identical {daughter} cells to the original {parent} cell.
Meiosis and mitosis create 23 pairs of chromosomes.
Mitosis creates different daughter cells from the parent cell.
Meiosis results in 4 daughter cells containing half {haploid} the number of chromosomes as the parent cell.
Meiosis occurs in the gamete cells of organisms who reproduce sexually.
Birds from the north migrate to the South to _______________.
Sleep through the cold winter months
Find food in warmer regions during the winter
Sleep through the hot summer months
Go on vacation
A harmless fly looks just like a wasp. What adaptation does the harmless fly have?
Hibernation
Waterproof Skin
Camouflage
Mimicry
Hibernation is an example of _______________.
Behavioral Adaptation
Migration
Physical Adaptation
Camouflage
Thick fur and blubber are examples of __________________.
Behavioral adaptations
Physical Adaptations
Camouflage
Hibernation
Elephants have abnormally large ears for their size. What is the most important function of a rabbit's big ears?
They attract other elephants in order to mate
They are used as an energy source when food is hard to find.
They help the elephant remain balanced as it walks around
They act like giant fans to cool the elephant down when it's hot.
What are examples of asexual reproduction?
regeneration like in starfish
binary fission like in bacteria
fragmentation like a planaria
runners like on bean or strawberry plants
flowers pollinated on strawberry plants
What is true about our DNA? THERE WILL BE MORE THAN ONE ANSWER!
located in the nucleus of every eukaryotic cell
made up of a sugar backbone and nucleotide base pairs {cytosine/guanine & thymine/adenosine}
duplicated during interphase
found only in gamete cells
If the message never gets through for a cell to stop dividing and it just keeps dividing over and over again uncontrollably, what can form?
tumor
freckle
goosebump
scab
What is the diploid number of cells found in a human body cell?
23
46 or 23 pair
92
47
If you receive a cut on your finger or where to break a bone in your body, how does the injury heal?
meiosis
the cells around the injury move to cover it up
the cells around the area get smaller
Cells that surround the injury multiply to replace the injured, dead cells.
What is true about this life process? THERE WILL BE MORE THAN ONE ANSWER!
It takes more time to reproduce.
It creates clones.
More offspring will be able to survive quick changes in the environment due to genetic diversity {heterozygosity}.
It is meiosis.
It is mitosis.
What is true about most mutations in the human body?
They are harmful.
They are beneficial.
They are neutral as the body's produces enzymes to correct or the mutation to protect the body from the genetic error.
All of the Above
What is a gene?
A segment of RNA that encodes for a protein and are located on sugar backbones.
A chromosome
A segment of DNA that encodes for a protein and are located on chromosomes.
A segment of a chromosome that is found on DNA.
A mutation can be...
harmful
helpful
neutral
harmful or helpful, but never neutral
harmful, helpful, AND neutral
What is the correct order of the following from LEAST to GREATEST?
traits---DNA---chromosomes---genes--sugar backbone/neucleotide base pairs {proteins}
DNA---chromosomes---genes--sugar backbone/neucleotide base pairs {proteins}---traits
sugar backbone/nucleotide base pairs {proteins}---DNA---chromosomes---genes--traits
sugar backbone/nucleotide base pairs {proteins}---DNA---genes---chromosomes--traits
In sexual reproduction, it is said that the chromosomes are maintained from parent to offspring. What does this mean?
The chromosomes are doubled from the parent to the offspring.
The chromosomes are the same amount as the parent because crossing over creates 4 haploid {resulting in heterozygosity} cells that join to create a new organism.
Gamete cells have the same number of chromosomes as somatic {body cells}
Offspring are only half of their parents with 23 total chromosomes and NOT 46 total chromosomes.
A zygote is created by meiosis. What is true about the number of chromosomes it has compared to the parents?
The number of chromosomes is 1/2 of the number of the parent's chromosomes.
The number of chromosomes is the same as the number of the parent's chromosomes.
The number of chromosomes is double the umber of the parent's chromosomes.
The number of the chromosomes is 1/4 the number of the parent's chromosomes.
If a heterozygous long tailed mouse crosses with a homozygous recessive short tailed mouse, what is the probability that offspring will have short tails?
0%
25%
50%
100%
A white tailed duck is homozygous. A brown tailed duck is heterozygous. What is the white to brown tailed PHENOTYPIC ratio of the offspring ? HINT: THINK ABOUT YOUR VOCABULARY!
1 to 1
1 to 2 to 1
4 to 0
3 to 1
What causes a mutation?
The genetic code changes from the original pattern causing a change in the DNA sequence which alters the function of that gene trait.
The genes scramble in sequence which gives out the wrong outcome of the trait.
The genetic code is erased causing the trait for that gene component to be incorrect.
The genetic code has additional content added to the DNA sequence which causes an error in the way that gene functions.
What is true about this flower? THERE WILL BE MORE THAN ONE ANSWER!
The flower has male and female parts for sexual reproduction to create seeds.
The female parts are set up to catch pollen from the male parts of the flower.
The flower reproduces asexually.
The flowers petals are a structural adaptation meant to attract pollinators like insects.
What is true about the strawberry plant? THERE WILL BE MORE THAN ONE ANSWER.
This plant reproduces by asexual reproduction only.
This plant reproduces asexually with runners.
This plant reproduces sexually with the formation of seeds through pollination combining egg & sperm.
This plant reproduces by sexual reproduction only.
TRUE or FALSE: Sexual reproduction creates genetic diversity.
TRUE
FALSE
