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WorksheetsMid-Unit 2 Genetics Vocabulary Review
Total questions: 18
Worksheet time: 18mins
Each cell actually contains two copies of each gene. The copies could be identical or they could be different versions of the same gene, called -
alleles
chromosomes
gametes
zygotes
____________ is a process that happens in germline cells that will divide to produce sex cells, also known as gametes. 4 daughter cells are produced from 1 original germline cell. The goal is to separate each pair of chromosomes into two new cells, each cell having one of each chromosome instead of two.
Mitosis
Meiosis
Germline cells
Zygotes
Chromosomes are -
structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA), which is condensed and folded around the protein.
segments of DNA that code for the production of specific proteins.
cells that develop into gametes.
different versions of the same gene.
Are there differences between the chromosomes of males and females?
Yes! The final pair of chromosomes are different (X and Y). The X is a larger chromosome than the Y
Yes! There are different numbers of chromosomes. Females have XY and males have XX.
No! Males and females have the identical chromosomes.
Sperm and egg cells can also be called - (pick 1 or more)
gametes
sex cells
somatic cells
body cells
A process that increases genetic diversity during meiosis.
Crossing over
Mitosis
Homologous chromosomes
Independent assortment
Genome -
The complete set of genes in an organism
Egg and sperm cells
A cell that divides to produce gametes
A segment of DNA that code for the production of specific proteins
The number of chromosomes in an adult female minus sex chromosomes =
46 - 4 = 42
23 - 2 = 21
46 - 2 = 44
23 - 4 = 19
The cell formed when an egg and sperm meet -
Zygote
Genome
Allele
Somatic cell
Chromosome
The random lining-up of homologous pairs at the cell’s middle is called -
crossing over
independent assortment
meiosis
mitosis
An allele that is always expressed when it is present. Usually represented by capital letters, such as F.
Dominant allele
Recessive allele
Having two alleles that are different
Heterozygous
Homozygous dominant
Homozygous recessive
Phenotype
Phenotype means -
the physical appearance of an organism.
the genetic makeup of an organism.
having two alleles that are different.
having two alleles that are the same.
A(n) ____________ is any characteristic of an organism, which can be influenced by genes and / or the organism's environment.
trait
gene
allele
hybrid
Punnett Square
the passage of genetic information from a parent or parents to offspring
a diagram that shows the possible offspring of two parents
an allele that is not expressed when the dominant allele is present
a molecule found in the cell nucleus that encodes genetic information
An organism with a heterozygous genotype will demonstrate -
the dominant allele's trait in its phenotype
the recessive allele's trait in its phenotype
Genotype: RR
Homozygous recessive
Homozygous dominant
Heterozygous
Genotype: Homozygous recessive
Rr
rr
rR
RR
