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Genetics & Stuff
Mitosis, Meosis, chrmotin, chromosomes, genes
Question | Answer |
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Mendel's First Law of Segregation | During gamete formation in Anaphase 1 of meiosis alleles for a trait separate into diff. gametes to recombine during fertilization to form traits for offspring. When F1 generation is crossed to form new offspring, previously recessive traits are seen. |
Mendel's Second Law of Independent Assortment | Alleles of genes on non-homologous chromosomes assort independently during gamete formation. Due to alignment of bivalents during metaphase1. Alleles for different traits are distributed to the offspring independently of one another. One gene at a time |
Test Cross | Used to see if a dominant phenotype is homozygous dominant or heterozygous. |
Monohybrid Cross | The 4 box punnet square, used when finding results for one trait. |
Dihybrid Cross | The 16 box punnet square. When finding results for two different traits |
Hybridization | The act or process of mating organisms of different varieties or species to create a hybrid or The process of forming a double stranded nucleic acid from joining two complementary strands of DNA (or RNA). |
Cytokinesis | The last phase of Mitosis & Meiosis, when the cells separate or when the new plant wall is formed. Failure or which result in a cell w/ 2 nucleuses. |
Autosomal Recessive | A recessive trait is passed down. Not all are affected and some are carriers of the recessive trait. |
X-linked recessive | Only men are affected because it affects the X chromosome. Can skip a generation. |
Gamete | egg/sperm |
Allele | Alternative versions of genes, account for variations in a phenotype. Get one from each parent. |
TATA box | In eukaryotic promotors it is the recognition site for transcription factors |
DNA Polymerase III | Adds nucleotides toe the 3' end of a growing DNA strand in leading and lagging strand synthesis. |
Primase | Synthesizes short segments of RNA required for leading and lagging strand replication |
Ligase | Binds two strands of replicated DNA together |