Mitosis/Meiosis
These separate during anaphase of mitosis.
What are sister chromatids?
Genes are located on the ___ of chromosomes.
Most cells spend 90% of their cell cycle in this phase.
What is interphase?
What organism did Mendel study to derive his two laws of inheritance?
What are pea plants?
This type of inheritance explains the blending of dominant and recessive traits in heterozygous individuals.
What is incomplete dominance?
A cell that produces daughter cells with 18 chromosomes after undergoing meiosis has this diploid number.
What is 36?
Allele:Genotype, Trait:_____
What is phenotype?
The commonly-held belief that lost neurons never regenerate holds some merit because most mature neurons enter this phase of the cell cycle.
What is G0 phase?
This is the probability that offspring will be heterozygous in the following cross: Tt x Tt
What is 1/2?
A cross between a plant that produces yellow corn and one that produces purple corn yields a plant that produces corn with both yellow and purple kernels. The inheritance of kernel color is an example of this form of inheritance.
This keeps homologous chromosomes together during meiosis.
What is the synaptonemal complex?
In a monohybrid cross, this is the probability that the progeny inherit the recessive trait.
Concentrations of this protein would be lowest during G1 phase.
What is cyclin?
A researcher is investigating the passing of traits in a dihybrid cross and observes four possible combinations of traits in the F1 generation--an illustration of this law of Mendelian genetics.
What is the Law of Independent Assortment?
The frequency of heterozygosity for the sickle-cell anemia allele is unusually high, presumably because this reduces the frequency of malaria. Such a relationship demonstrates this phenomenon.
What is natural selection?
Down syndrome is the result of trisomy 21, which likely stemmed from a malfunction in this specific phase of cell division.
What is anaphase II?
The ___ proteins in kinetochores chew away microtubules, pulling chromosomes to the poles of cells during anaphase and generate ____ subunits. Two answers, all or nothing
What are motor proteins and tubulin subunits?
Unlike cultures of normal cells, many types of cultured cancer cells can divide quickly in the absence of ___ in the media.
What is growth factor?
A researcher observes the passing of a single trait from generation to generation. After one generation, only the dominant phenotype appears, but she observes both the recessive and dominant phenotype in the second generation. This must mean that the P generation must have this genotype.
What is homozygous?
Skin color in a certain species of fish is inherited via a single gene with four different alleles.
One fish of this type has alleles 1 and 3 (S1S3) and its mate has alleles 2 and 4 (S2S4). If each allele confers a unit of color darkness such that S1 has one unit, S2 has two units, and so on, then this proportion of their offspring would be expected to have five units of color.
What is 1/2?
Plant cells do not produce a cleavage furrow during cytokinesis. Instead, cytoplasm is divided via this structure which arises from vesicles from this organelle. Two answers: all or nothing
What is the cell plate, and what is the Golgi apparatus?
Not all organisms produce gamete as a direct result of meiosis. Some undergo a multicellular haploid stage called the ____.
What is a gametophyte?
Immediately following cell division, a cell develops a spontaneous mutation resulting in the overproduction of the Neverland enzyme, which causes the rampant degradation of cyclin protein. Which phase of the cell cycle would be most immediately affected?
What is G2 phase?
This is the probability that a cross of AaBBccDdEe x aaBbCcDdEe would yield an organism with the genotype aaBbccddee.
What is 1/128?
Karen and Steve each have a sibling with sickle-cell disease. Neither Karen nor Steve nor any of their parents have the disease, and none of them have been tested to see if they carry the sickle-cell allele. Based on this incomplete information, this is the probability that Karen and Steve's child will have sickle-cell disease.
What is 1/9?