Science Revew Game Genetics
Terms
undefined, object
copy deck
- If an organism has a 24 chromosomes in a sex cell, how many would it have in a body cell?
- 48
- What is a gene?
- A gene is trait found in an organism
- What is the difference between anaphase I and anaphase II?
- Anaphase I the tetrads are being pulled apart.Anaphase II the chromosomes are being pulled apart.
- What is an organism's phenotype?
- It is their physical appearance
- If two parents do not have a trait but their child does have the trait, what does this tell you about the parents genotype?
- That both parents are heterozygous for that particular trait
- What is a tetrad?
- A tetrad is two pair of homologous chromosomes joined together
- What are two differences between mitosis and meiosis?
- Mitosis makes body cells that have the 2n number. Meiosis makes sex cells that have the n number
- What are the possible genotypes of the offspring from the following cross:Tt x tt
- 50% Tt 50% tt
- What does tt represent?
- The organisms genotype. States that the trait is homozygous recessive
- How many nuclei are formed at the end of meiosis?
- 4
- What does genetics mean?
- Is the study of how traits are passed from one generation to the next
- draw metaphase I
- ....
- The scientific study of heredity is called
- Genetics
- What does the 2n number mean?
- This tells you the total number of chromosomes found in that particular species
- Why is meiosis important to the survival of a species?
- Meiosis produces the sex cells that will join together to form a zygote
- What is an allele?
- An allele is the different form of a gene
- Where are the chromosomes found?
- In the nucleus
- An organism with two different alleles for a trait is said to be
- Heterozygous
- If you have 12 pairs of chromosomes in a body cell, how many chromosomes do you have in a sex cell?
- 12
- If a heterozygous black guinea pig (Bb) is mated with a white guinea pig, what is the probability of having white offspring?
- 50%
- If I produce 4,000 offspring, 3,000 have red flowers and 1,000 have white flowers, which trait is dominant?
- The red flower is the dominant trait
- What is a phenotype?
- the physical appearance of an organism
- What does genotype mean?
- The genetic make up of an organism
- A person with two x chromosomes is said to be
- Female
- If dimples is dominant over not having dimples, then what would be the result of a cross between a non-dimpled person and a heterozygous person having dimples?
- 50% Dimples, 50% No dimples
- What does haploid mean?
- Half the total number of chromosomes
- What are homologous chromosomes?
- Two chromosomes that look alike and have the same genes
- What is the function of a Punnett square?
- To show all of the possible outcomes of a specific cross
- What is the difference between metaphase I and metaphase II?
- In metaphase I the tetrads line up in the middle of the cell. In metaphase II the chromosomes line up in the middle of the cell.