it\'s a review sheet answer these questions please Review sheet for Exam 1 Stude
ID: 192953 • Letter: I
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it's a review sheet answer these questions please
Review sheet for Exam 1 Students should be able to Know all terminology that we used in lectures/labs Mendelian Genetics Perform a 2 test and interpret it Differentiate between sex-linked and autosomal-linked inheritance Describe linkage (genes on same chromosome) . . o Draw a linkage map Describe the types of inheritance that don't produce expected phenotypes . Multiple allelism, co-dominance, incomplete dominance, etc. o Explain how we apply Mendel's rules to humansExplanation / Answer
Sex linked inheritance is the inheritance of genes in the sex chromosomes. These genes are autosomal genes like eye colour but are present in the sex chromosome. There are two types of inheritance: X-linked and Y-linked inheritance.
Autosomal linked inheritance is the inheritance of genes in the autosomal chromosomes. They all are genes coding for somatic traits. They are irrespective to sex chromosomes.
Multiple allelism is the phenomenon of presence of more than one alleles to represent a single trait. In other words more than one alternative form a trait are presented and the dominant level of these genes is in a range.
Co-dominance is when both the alleles are equally represented and as a single separate phenotype. For example, in MN blood type, both M and N are not recessive or dominant but co-dominant. So in heterozygous condition, both M and N types are codominant - MN blood group.
Incomplete dominance is the lack of a complete dominant allele for a particular trait. Say for an instance, the flower colour of Mirabilis ranges from red to pink to white. This is because in heterozygous condition the flower colour is not being completely dominant as red but produces a range from pink to white colour.
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