WorksheetsMitosis and Meiosis - Unit 7
Total questions: 22
Worksheet time: 18mins
Genes are short segments of DNA and are located in the ________ of a cell.
mitochondria
chromosomes
genes
cells
The process by which a cell creates an exact copy of itself, allowing an organism to grow is know as:
fertilization
meiosis
mitosis
budding
In frogs there are 26 chromosomes in a fertilized egg. Which best describes how many chromosomes are in the egg and sperm cells before fertilization?
26 chromosomes in the egg cell and 26 chromosomes in the sperm cell
13 chromosomes in the egg cell and 13 chromosomes in the sperm cell
52 chromosomes in the egg cell and 52 chromosomes in the sperm cell
26 chromosomes in the egg cell and 0 chromosomes in the sperm cell
If an organism reproduces asexually, as in budding, its offspring will most likely be:
genetically different from each other.
produced from specialized cells known as egg and sperm.
genetically identical to the parent
produced as a result of fertilization.
How do mitosis and meiosis differ?
Meiosis produces 2 identical cells, while mitosis produces 4 identical cells.
Mitosis produces 2 identical cells, while meiosis produces 4 different cells.
Mitosis produces 4 different cells, while meiosis produces 2 identical cells.
Meiosis produces only 1 cell, while mitosis produces many.
What type of reproduction results in offspring that are genetically identical?
sexual reproduction
genetic engineering
meiosis
asexual reproduction
Living things continue their species through sexual and/or asexual reproduction. Which of the following is true for BOTH sexual and asexual reproduction?
Sperm and egg cells are needed.
Offspring is an exact copy of the parent.
Genetic information is passes from parent to offspring.
They only occur in animal species.
Most cells in the body of a fruit fly contain 8 chromosomes. In some cell, only 4 chromosomes are present. The cells with only 4 chromosomes were formed by which process?
mitosis
meiosis
fertilization
synthesis
Organisms can reproduce in one of two ways - sexually or asexually. Amoeba are examples of organisms that reproduce asexually. When amoeba reproduce, they replicate their DNA and then divide in half. Therefore,
none of the offspring's genes are identical to those of the parent.
all of the offspring's genes are identical to those of the parent.
half of the offspring's genes come from the parent.
very few of the offspring's genes come from one parent.
Cows have 60 chromosomes. A calf received one set of chromosomes from its mother and another set of chromosomes from its father. How many chromosomes did each parent contribute?
Mom and dad each gave 60 chromosomes.
Mom and dad each gave 30 chromosomes.
If the calf looks more like the mom, she gave 40 chromosomes.
If the calf looks more like the dad, he gave 40 chromosomes.
Which of the following is true of the daughter cells produced during meiosis?
The genetic information in the parent cell is removed completely.
The genetic information in the parent cell is copied exactly and passed to daughter cells.
The genetic information is reduced to form daughter cells with half the number of chromosomes as the parent cell.
The genetic information is multiplied to form daughter cells with double the number of chromosomes as the parent cell.
When offspring show characteristics of both parent organisms, it is a result of what type of reproduction?
sexual reproduction- the joining of a sperm and egg cell
Budding- a piece of an organism breaks off and grows a new life
binary fission- a unicellular organisms splits in two
cloning- cells from an organism are used to grow new organism
Which of the following is the best explanation for how living things grow?
The number of cells increases
The size of cells become larger
The cells absorb food
Parts of the body stretch out more
In which organelle are chromosomes found?
mitochondria
cell membrane
vacuoles
nucleus
