Genetics
Heredity
Meiosis and mitosis
Punnet Squares
Misc
100
Name the three parts of a nucleotide
Deoxyribose sugar, phosphate group and nitrogen base
100
How many chromomsomes do humans have?
46 or 23 pairs
100
What stage of mitosis is in the box below?
Metaphase
100
Some genes can be hidden or covered up by another. These are considered to be-
Recessive
100
What are the three types of point mutations?
substitution, deletion and insertion
200
Where is DNA located in the cell?
in nucleus
200
A cat has 38 chromosomes. Identify the diploid number and the haploid number of chromosomes
Diploid: 38
Haploid: 19
200
Describe 2 differences between mitosis and meiosis
Mitosis has 2 daughter cells, whereas meiosis has 4 daughter cells.
Mitosis daughter cells are identical, meiosis daughter cells are not.
Mitosis daughter cells are diploid, meiosis daughter cells are haploid.
Mitosis occurs in body cells, whereas meiosis occurs in sex cells.
200
What is the punnet square used for?
To determine the possible genotypes and phenotypes of genetic crossings, and the probability of each
200
What kind of point mutation is shown below?
substitution
300
What are the condensed DNA called?
Chromosomes
300
Write an example of genotype, and an example of phenotype
Genotype: Bb
Phenotype: Brown eyes
300
The phase of mitosis shown in B is...
Telophase
300
A black chicken (BB) is crossed with a black chicken (BB). What percentage of offspring will be black?
100%
300
What type of inheritance pattern is shown below and why? (Dominant or recessive)
Recessive because it skips a generation
400
Sections of DNA that code for a specific trait are called
Genes
400
The physical trait observed in an offspring is known as it's -
Phenotype
400
For some traits, only one copy of a particular gene is needed to show a given trait. These genes are referred to as-
Dominant
400
Having dimples is dominant (D). Not having dimples is recessive. (d) Both parents are heterozygous for the dominant trait. What percentage of the children will NOT have dimples?
25%
400
Name 2 processes occurring when cells are in interphase of the cell cycle?
DNA replication
Cell growth
Carries out its functions
500
What do we call the genetic make up of the individual, represented by a set of letters?
Genotype
500
When a person has a heterozygous genotype and is not expressing the trait, they are called...
a carrier
500
The stage of mitosis shown by letter C is
Anaphase
500
Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other homozygours reccessive (e), what is the only possible genotype of the offspring?
Ee
500
Two dark brown rabbits have four offspring. Three of the offspring are dark and one is white. What does this tell you about the parents' genes for fur color?
Dark brown is dominant and white fur is recessive. Both parents are heterozygous.