1. Given the following parental genotypes‚ show all possible gametes that each could form. Circle each gamete. Note: different gamete types are separated by commas in the table below. Genotype Gametes: AA A Aa A‚ a Bb B‚ b bb b cc c AABB AB AAbb Ab Aabb Ab‚ ab AaBb AB‚ Ab‚ aB‚ ab AaBbCc ABC‚ ABc‚ Abc‚ AbC‚ aBc‚ aBC‚ abC‚ abc 2. In summer squash‚ white fruit color (W) is dominant over yellow (w). If a squash plant homozygous for white is crossed with one homozygous for yellow‚ what will be the apearance
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say about that. Heritable/ Genetic trait was the second‚ because i don’t really carry a lot of traits that i can relate to my parents but there is some. Last one was the punnett squares‚ that one is easy because you can get your phenotype by getting your parents genotype. One genetic engineering i chose was Arbogen‚ i chose this company because they care about the nature. They care about trees‚ and help them with their growth and keeping them alive. They put a lot of effort into supporting the wetland
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Concept Check 14.1 C O N C E P T C H E C K 14.1 1. Pea plants heterozygous for flower position and stem length (AaTt) are allowed to selfpollinate‚ and 400 of the resulting seeds are planted. Draw a Punnett square for this cross. How many offspring would be predicted to have terminal flowers and be dwarf? (See Table 14.1.) 1. According to the law of independent assortment‚ 25 plants (1⁄16 of the offspring) are predicted to be aatt‚ or recessive for both characters. The actual result is likely
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occurs at the level of a. the individual genotype b. the individual phenotype c. environmentally based phenotypic variation d. the population 2. What does natural selection act upon? a. The gene pool of the species b. The genotype c. The phenotype d. Multiple gene inheritance systems 3. Suppose a particular species of flowering plant that lives only one year can produce red‚ white‚ or pink blossoms‚ depending on its genotype. Biologists studying a population of this
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homozygous or heterozygous (7)______Phenotype__________- the manner in which genotype is expressed - Example: the presence of a widow’s peak or not‚ blue vs brown eyes‚ etc. Monohybrid - one pair of alleles determine a trait. (Most traits are not determined by a single allele pair‚ but these will be used as an example). Use of Punnett Square - a grid used to determine the possible genotypes‚ and thus resulting phenotypes of offspring. Utilizes the alleles of both parents. Sex Linked Inheritance Of
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The offspring of Mendel’s classic pea cross always looked like one of the two parental varieties because a.|one phenotype was completely dominant over another.| b.|each allele affected phenotypic expression.| c.|the traits blended together during fertilization.| d.|no genes interacted to produce the parental phenotype.| e.|different genes interacted to produce the parental phenotype.| ____ 5. What was the most significant
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Genetics Review DNA (Deoxyribonucleic Acid): Stored inside chromosomes and contain all instructions for life It is made up of Ribose (sugar)‚ phosphate‚ and when of 4 Nitrogenous bases (Adenine‚ Thymine‚ Guanine and Cytosine) A Nucleotide consists of a Phosphate molecule‚ a sugar molecule‚ and a Nitrogenous base pair The nitrogenous bases always pair up AT and CG Each human has 46 chromosomes 23 pairs in total 1 pair sex chromosomes (that define your sex‚ male XX‚ female XY) 22
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for cytosine‚ and T is for thymine. 2. How does an organism’s genotype determine its phenotype? ➢ An organism’s genotype‚ its genetic makeup‚ is the sequence of nucleotide bases in its DNA. The phenotype‚ the organism’s physical traits‚ arises from the actions of a wide variety of proteins. The genotype is the descriptor of the genome which is the set of physical DNA molecules inherited from the organism’s parents. The phenotype is the descriptor of the phenome‚ the manifest physical properties
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Plant Physiology Review for Quiz 4/09/13 1. What is Plant Physiology? Plant physiology is the study of the functions of plants. 2. What is the difference between phenotype and genotype The difference between phenotype and genotype is that phenotype is the external characteristics and genotype is the genetic make up 3. What are the two types of cell walls? The two types of cell walls are primary cell wall and secondary cell wall. 4. What are the most abundance components of the CELL
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population. Genetic drift‚ defined as the process in which chance events cause unpredictable fluctuations in allele frequencies from one generation to the next‚ can increase or decrease variability within particularly small populations. Certain genotype/phenotype frequencies‚ for example‚ may be reduced or completely eliminated through chance events. Examples of genetic drift might include the founder effect‚ which consists of a select amount of individuals is separated from a larger population and eventually
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