Mitosis
Identify the phase when spindle fibers shorten and pull the chromosomes APART. Chromosomes them move AWAY to opposite sides of the cell
Anaphase
Scientific name for the fertilisation of the egg and sperm?
Zygote
Phenotype = observable physical properties
A pair of X chromosomes (aka: XX genotype) is ?
Female Genotype
State what 2n means.
Diploid cell
Recall the phase in which the cell is getting ready for division. The Nuclear membrane is beginning to dissolve. Chromosomes condense. Spindle fibers form at the poles (centrioles).
Prophase
The number of cycles that meiosis goes through.
Two
What are the three steps involved with speciation?
1. Variation
2. Isolation
3. Selection
XY Chromosomes represent ?
Male Genotype
Identify how is a diploid cell produced and the amount of chromosomes it contains?
Diploid cell produced via mitosis. It contains 23 pairs of chromosomes, used for growth and repair.
Identify the phase when the chromosomes line up in the equator of the cell.
Metaphase
Anaphase I
Explain Natural selection.
Natural selection: process by which an environmental factor acts on a population and results in some organisms having a greater chance of survival and producing more offspring than others.
What components create a nucleotide?
Phosphate
Sugar
Nitrogen-rich Base
Identify the process that results in new cells with genetic material that is identical to the original cell.
Mitosis
If the body cell has 30 chromosomes and undergoes mitosis, identify how many chromosomes each daughter cell have?
30 chromosomes in each daughter cell
Identify the phase where two cells are formed, each with one replicated chromosome.
Telophase I
What is an example of a source of evidence and explain.
• The fossil record
• Comparative anatomy
• Genetics and biochemistry
• Geographic distribution of species
• Embryology
Name the term for the 22 pairs of chromosomes?
Autosomes
The stomach cell for a domestic cat contains 38 chromosomes, how many chromosomes would be found in a cat's sperm cell?
19 chromosomes
Identify the six phases of mitosis in order.
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Identify the six phases of meiosis in order.
Metaphase II
Anaphase II
Telophase II
If the strawberry DNA had 30% adenine what was the percentage of the other bases?
30% Thymine
20% Cytosine
20% Guanine
Identify the complementary base pair:
GCATTACGACTA
CGTAATGCTGAT
What is the term given to chromosomes has the same length, same centromere position and the same genes for a particular characteristic ?
Homologous chromosomes