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Life Science

Life begets Life - GENETICS


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Lessons

Here is the class outline:

1. Welcome to LIFE begets LIFE - GENETICS

Hi there! Welcome to GENETICS. Thank you for signing up in this crash course. I am so excited to teach and learn with you Cheers, Annie Gayle H. Boy

2. Week 1

Let us now begin our online class! Genetics is the study of how genes bring about characteristics, or traits, in living things and how those characteristics are inherited. Genes are specific sequences of nucleotides that code for particular proteins. Through the processes of meiosis and sexual reproduction, genes are transmitted from one generation to the next. Augustinian monk Gregor Mendel developed the science of genetics. Mendel performed his experiments in the 1860s and 1870s, but the scientific community did not accept his work until early in the twentieth century. Because the principles established by Mendel form the basis for genetics, the science is often referred to as Mendelian genetics. It is also called classical genetics to distinguish it from another branch of biology known as molecular genetics (see Chapter 10).

3. Week 2

The second week is all about the punnett square. Punnett Squares are a tool used to predict what traits an offspring will have based on the genes (or GENOTYPES) of their parents. Here are the steps on how to make and use the punnett square 1. Draw a box divided into four like window. 2. Write the genotype (such as Aa or PP or bb) of one parent on the top of the Punnett Square. 3. Write the genotype of the other parents on the left side of the Punnett Square. 4. Fill in the 4 boxes in the square with the letters from the row and coluMn they are in.

4. Week 3

In our final week, im going to discuss the three laws of inheritance. Mendel's law of segregation describes what happens to the alleles that make up a gene during formation of gametes.Mendel's law of segregation says that the alleles that make up a gene separate from each other, or segregate, during the formation of gametes. Mendel's law of independent assortment refers to the fact that any plant contains many different kinds of gelaw deals with the matter of dominance. Suppose that a gene contains an allele for red color (R) and an allele for white color (r). What will be the color of the flowers produced on this plant? Mendel's answer was that in every pair of alleles, one is more likely to be expressed than the other. In other words, one allele is dominant and the other allele is recessiveness. law deals with the matter of dominance. Suppose that a gene contains an allele for red color (R) and an allele for white color (r). What will be the color of the flowers produced on this plant? Mendel's answer was that in every pair of alleles, one is more likely to be expressed than the other. In other words, one allele is dominant and the other allele is recessive

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