KNOW and UNDERSTAND the following TERMS and DEFINITIONS: -DNA - diploid - genes - haploid - chromosomes - crossing over - sex cells - fertilisation - somatic cells - gamete - autosomes - zygote - sex chromosomes - phenotype - karyotype - genotype - eukaryotic cell division - dominant - mitosis - recessive - meiosis - homozygous - heterozygous - incomplete dominance - codominance - pure bred - hybrid - monohybrid cross 2. Make sure you know
Premium Allele Zygosity Chromosome
letters. 2. How does an organism’s genotype determine its phenotype? The distinction between phenotype and genotype is fundamental to the understanding of heredity and development of organism. The genotype of an organism is the class to which that organism belongs as determined by the description of the actual physical material made up of DNA that was passed to the organisms by its parents at the organism’s conception. The phenotype of an organism is the class to which that organism belongs as
Premium DNA Gene Genetics
of A‚ C‚ T‚ and G. 2. How does an organism’s genotype determine its phenotype? Genotype is a term that refers to a living organism’s genetic makeup‚ whereas phenotype refers to an organism’s actual physical traits. Being that genotype describes an organisms genetic characteristics‚ this would also mean that the genetic characteristics that makes up one’s genotype will also determine that individuals phenotype‚ or physical characteristics. Since genetics play a major role in the determination
Premium DNA Gene Genetics
purple flowers one must have both C and P alleles present. Explanation: In genetics‚ epistasis is a phenomenon in which the expression of one gene depends on the presence of one or more "modifier genes." A gene whose phenotype is expressed is called epistatic‚ while one whose phenotype is altered or suppressed is calledhypostatic. Epistasis can be contrasted with dominance‚ which is an interaction between alleles at the same gene locus. Epistasis is often studied in relation to Quantitative Trait Loci (QTL)
Premium Genetics Gene Allele
using Punett square: Gametes X x X XX Xx x Xx xx Data: Questions: A. What are the predicted ratios of the phenotypes in the plants? I predicted ¾ will germinate as green and ¼ will germinate as yellow B. What was the total number of seeds that germinated? 80 C. What are the actual ratios of the phenotypes displayed in the tobacco plants? D. Explain why it may be important to collect data from a larger population. 51/80 for the green germinated seeds
Premium Allele Zygosity
traits are selected. Some of these similarities between to these processes are that some traits are favored over others‚ and both process choose traits that are inheritable. 2) Stabilizing selection is the process when individuals with intermediate phenotypes have higher survival
Premium Natural selection Evolution Biology
1. Define genotype and phenotype‚ and describe how they are related. Genotype is the genetic make-up‚ the inheritable information‚ which comprises an individual organism. It is the code that is copied in reproduction and is passed from 1 generation to the next. It serves as the main guide in the growth‚ development and maintenance of a living organism; it also controls the formation of certain proteins and regulation of metabolism and synthesis. Alleles are alternative forms of a gene and genotype
Premium Gene DNA Genetics
Mendel‚ Genes‚ and Inheritance Chapter 12 Why It Matters Red blood cells in sickle-cell disease One amino acid in the wrong position causes the disease 12.1 The Beginnings of Genetics: Mendel’s Garden Peas Mendel chose true-breeding garden peas for his experiments Mendel first worked with single-character crosses Mendel’s single-character crosses led him to propose the principle of segregation Mendel could predict both classes and proportions of offspring from his hypotheses
Premium Blood type Genetics Allele
Mendelian Genetics Introduction In 1865 an Austrian monk‚ Gregor Mendel‚ presented the results of painstaking experiments on the inheritance of the garden pea. Those results were heard‚ but not understood‚ by Mendel’s audience. In 1866‚ Mendel published his results in an obscure German journal. The result of this was that Mendel’s work was ignored and forgotten. Mendel died in 1884 without knowing the pivotal role his work would play in founding the modern discipline of genetics. By 1899‚ some
Premium Gregor Mendel Genetics Null hypothesis
2. How does an organism’s genotype determine its phenotype? The genotype is the genetic makeup of a cell‚ an organism‚ or an individual usually with reference to a specific character under consideration. A phenotype is the composite of an organism’s observable characteristics or traits: such as its morphology‚ development‚ biochemical or physiological properties‚ phrenology‚ behavior‚ and products of behavior. Phenotypes result from the expression of an organism’s genes as well as
Premium DNA Gene