this genetic complementation test tell you? a. The genes are part of distinct biosynthetic pathways b. The two lines exhibit different mutations in the same gene c. More than one gene is involved in determining the phenotype d. The allele is pleiotropic e. The allele exhibits incomplete dominance 2. In a testcross of two plants where one parent is tall and has normal leaves and the other parent is a dwarf and has mottled leaves (tm/tm)‚ the following numbers of progeny genotypes are counted.
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Chapter 6 Explain what free energy is and how it can be used to predict the energetic outcome of chemical reactions.Free energy is defined as the energy available to do work in any system. The free energy is denoted by the symbol G. G = H – TS* H: the energy contained in a molecule’s chemical bonds‚ called enthalpy.* TS: the energy term related to the degree of disorder in the system. T is the absolute temperature (K)‚ and S is the entropy.We can use the change in free energy to predict whether
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Biology - Main Questions And Answers: Complete the table with a tick if the statement in the first column is true‚ for each process. Write a simple equation to show how ATP is synthesised from ADP: ADP + Pi ATP Give two ways in which the properties of ATP make it a suitable source of energy in biological processes: 1. Energy released in small/suitable amounts 2. Soluble 3. Involves a single/simple reaction Humans synthesise more than their body mass of ATP each day.
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Chapter 13: Meiosis and Sexual Life Cycles 1) Genes are the units of heredity‚ and are made up of segments of DNA. 2) In asexual reproduction‚ one parent produces genetically identical offspring my mitosis. In sexual reproduction‚ two parents give rise to offspring that have unique combinations of genes inherited from the two parents. 3) Humans have somatic cells‚ which are any cell other than a gamete‚ have 23 pairs of chromosomes. A karyotype is an ordered display of the paired of chromosomes
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is indicated by a darkened square. If all offspring of a cross have the genotype Aa‚ the parents of the crosses would most likely be AA aa. Mules are sterile because they have an odd number of chromosomes A locus is the location of an allele on a chromosome Scientists began to question the perfection of the Chain of Being because of all of these. The border across which genes can flow between two populations is called the contact zone. Hybrid organisms produced from a cross between
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Chromosomal and human inheritance 1. An AABb individual is mated with another AABb individual. The possible number of genetically different kinds of offspring is _____. a. 3 b. 2 c. 9 d. 4 e. 1 2. The most common phenotype in a natural population is referred to as the _____. a. Mutant phenotype b. Wild type c. Liked gene d. Autosome e. Genotype 3. The most common lethal genetic disease in the United States is _____. a. PKU b. Huntington’s disease c. Sickle-cell disease d. Hemophilia e. Cystic fibrosis
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progeny would you expect? This would be a monohybrid cross: Rr x Rr => 1/4 RR‚ 1/2 Rr‚ 1/4 rr. 4. In maize‚ a dominant allele A is necessary for seed color‚ as opposed to colorless (a). Another gene has a recessive allele w that results in waxy starch‚ as opposed to normal starch (W). The two genes segregate independently. What are the phenotypes and relative frequencies of offspring from each of the following crosses? Notice: The question specifies phenotypic ratios. a. AaWw x AaWw
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individual‚ the trait is coded for by TWO alleles. In the population‚ one of the alleles is dominant and one is recessive. Individuals with two dominant alleles (homozygous dominant) have curvy-tipped flippers and individuals with two recessive alleles (homozygous recessive) have pointy-tipped flippers. Heterozygotes have curvy-tipped flippers. Let’s say the question asks you about the dominant allele… it could say‚ “the frequency of the dominant allele in the population is”… or it could say‚ “p
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monohybrid and dihybrid corn cross seed counts against Mendel ’s theoretical expectations of independent assortment and the segregation of alleles. Next‚ we used the Hardy-Weinberg Theorem to provide a theoretically expected value for allele frequencies for single human gene traits. Lastly‚ we dealt with Drosophila melanogaster and we examined red and white eye alleles to determine if this gene is sex-linked or autosomal. During the mid 1800 ’s Mendel bred garden peas to study inheritance. He choose
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Know definitions of the words used for Meiosis‚ Mendel’s work and Genetics Dominant – expression that is always expressed when its gene recessive - An expression that is expressed only when its allele is the only form of the gene present in the genotype. incomplete dominance - Neither allele is dominant to the other‚ thus each is expressed in the heterozygous genotype producing an intermediate phenotype. EX. Red (RR) and White (R’R’) snapdragons produce pink (RR’). epistasis - A condition
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