gene‚ DNA 2. Distinguish between: a. an autosome and a sex chromosome b. genotype and phenotype c. DNA and RNA d. recessvie and dominant traits e. pedigrees and karyotypes f. gene and genome a. An autosome does not carry genes that determine sex. A sex chromosome does. b. Genotype is the allele constitution in an individual for a particular gene. Phenotype is the physical expression of an allele combination. c. DNA is a double-stranded
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IB204 Mock exam 1 1) Tightly curled or wooly hair is caused by a dominant gene in humans. If a heterozygous curly-haired person marries a person with straight hair‚ what fraction of their offspring would be expected to have straight hair? A) 1/2 straight B) 1/4 curly C) 100% straight D) 3/4 curly E) It is impossible to predict the outcome. 2) Assume that a black guinea pig crossed with an albino guinea pig produced 5 black offspring. When the albino was crossed with a second black one‚ 4
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Role of Genetics Brenda Dople PSY 104 Child and Adolescent Development Instructor Andrew Fletcher April 16‚ 2012 There are billions of people on this planet. Everyone is different. Even our closest siblings can look‚ behave and have different abilities than we do. Do you ever wonder how this happens? Environmental and biological factors work together in a lifelong process to determine how a child will develop into an adult. In this paper‚ I will discuss how the biological
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Nhyl Pascua 3/22/2015 Period 4 Codominance Essential Question Why do offspring have different phenotypes from their parents or siblings? A Purpose Explore codominance by investigating the inheritance of sickle cell disease within a family. B Introduction Codominant alleles are both expressed in a persons phenotype.A heterozyygous will have the traits associated with both alleles.In this lab‚you will explore codominance by analyzing the results for the sickle cell disease within a family C Background
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A gene is a long sequence of nucleotides on a DNA molecule. A mutation is a change in the amount of an organism’s genetic material and when a change in genotype produces a change in phenotype‚ the individual affected is said to be a mutant. A gene mutation involves a change in one or more of the nucleotides in a strand of DNA. The sequence of nucleotides in a gene controls the order in which amino acids are made into a protein‚ therefore if the sequence of nucleotides in a gene is altered by a mutation
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eye colour. Located on the X chromosome‚ a fruit fly can exhibit the phenotype white eye (homozygous recessive)‚ or red eyed wild-type (dominant). Males of the species are XY‚ and as such only carry one eye colour determining X chromosome. Females are XX‚ and can therefore carry two eye colour determining genes. A heterozygous female will always display the dominant wild-type gene if present. The uncertainty of female genotype is cleared by the acquisition of an F0 stock which is homozygous dominant
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Lifetime perspective is human development that is determined by factors like genetics‚ socioeconomic status and the life of a person and how people do understand different aspects of life. In addition‚ lifetime is the period that ranges from conception to death. Several things that influence human development are socioeconomic‚ sex‚ heredity‚ nutritional and the hormones in the body. Socioeconomic as a factor is linked with children especially vary in their body sizes. Families with better nutrition
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This article is about evolution in biology. For other uses‚ see Evolution (disambiguation). Page semi-protected For a generally accessible and less technical introduction to the topic‚ see Introduction to evolution. Part of a series on Evolutionary biology Diagrammatic representation of the divergence of modern taxonomic groups from their common ancestor. Key topics[show] Processes and outcomes[show] Natural history[show] History of evolutionary theory[show] Fields and applications[show]
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BIOLOGY MIDTERM ESSAY 1. How does the biologist determine whether a thing is living or nonliving? Or what characteristics do living organisms have that non-living things do not? They look at it under a microscope and see if it has cells. Basically‚ if it has cells the it’s alive. If it doesn’t have cells it is considered nonliving. There are smaller archaebacteria that behave like small parts of cells. These are considered living too‚ because they have chemical bonds of RNA‚ which is the singular
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impact genes. For example‚ height is combination of people genes and various external factors‚ we can drink milk provide bonus nutrition‚ so good diet has given our ‘bonus’ inch or so. Now according to Allen‚ Environment factors produce different phenotypes from
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