What is the fourth stage of mitosis called?
A. Prophase
B. Metaphase
C. Telophase
D. Anaphase
C. Telophase
What is the goal of meiosis
To create genetically different offspring
Are daughter cells genetically identical in meiosis?
Yes or No
No, they are in mitosis though
Give 2 reasons why pea plants are great for gentic experiments
Which gene is more likely to be passed on to offspring, a dominant allele or a recessive allele?
Ab
Both have a 50./50 chance of being passed down. Phenotypically Dominant traits show up more often, technically.
What is the stage after mitosis called? (Not part of PMAT)
Cytokinesis
haploid cells
A. Mitosis
B. Meiosis
C. Both
B. Meiosis
If you cross a true breeding dominant flower with a true breeding recessive flower, what will the geneotypes be of the offspring?
do punnett square
The parental gametes are aB x Ab. What are the possible parental and recombinant combinations
aB, ab, AB, Ab
aB and Ab parental
ab and AB recombinant
How many complete sets of chromosomes are produced in mitosis?
46
How many daughter cells are produced in meiosis?
4 cells
Both Meiosis and Mitosis have centrosomes. WHat are the functions of centromsomes
What is the difference between phenotype and genotype
Phenotype is the physical appearance and genotype is the genetic appearance
Homologous chromosomes have same genes but different alleles (one from mom/ one from dad) seperate at meiosis 1 while a sister chromatid has identical genes and alleles (copies of one another), seperate at mitosis or meiosis 2
What happens in the third stage of mitosis?
In this stage the sister chromatids separate into individual chromosomes and are pulled apart.
In meiosis, how many chromosomes does each gamete contain?
23 chromosomes
Involves all body cells.
A. Mitosis
B. Meiosis
C. Both
A. Mitosis
Mendel crossed pea plants that differed in two traits, seed color and seed shape. He observed a 9:3:3:1 ratio in the offspring. What principle does this test prove?
It states that alleles for different genes separate independently during gamete formation. How the chromosomes line up during meiosis 1.
Give examples of codominance and incomplete dominance
Codominace would be black and white spotted cow
incomplete would be a red and white flower making a pink flower
What are the 8 phases of meiosis called?
8 phases: prophase I and II, metaphase I and II, anaphase I and II, telophase I and II
Chromosomes condense.
A. Mitosis
B. Meiosis
C. Both
C. Both
In pea plants,
Seed shape: Round (R) is dominant to wrinkled (r)
Seed color: Yellow (Y) is dominant to green (y)
A plant that is heterozygous for both traits (RrYy) is crossed with another plant that is also heterozygous for both traits (RrYy). Find the genotypes of the offspring
Do dihybrid cross
If sister chromosomes were to be crossed, would there be genetic variation? Why or why not
If a homologous chromosome were to be crossed, would there be genetic variation? Why, or why not?
No bc sister chromosomes are identical copies of one another
Yes, bc homologous chromosomes have the same genes but not the same alleles.