Science Holiday Break Homework

To check out where i recieved my infromation, click here



While I was reading "What is heredity?", I learned many interesting things. I learned that every child receives half of their chromosomes from there mom and the other half from their dad. This happens when a sperm cell and an egg cell join to create a single cell called a zygote which has 2 sets of chromosomes as well. I learned that out body contains of 2 sets of chromosomes. Each set contains 23 chromosomes so in all we have 46 of them. In addition, I learned that each parent contributes one set of chromosomes. However, the child must receive exactly one of each chromosome.



While I was reading "What is a trait?", I learned that there are different types of traits like physical traits, behavioral traits, and medical traits that people may inherit from there parents. Examples of a physical trait would be hair color, eye color, or height. An example of a behavioral trait is the way you act or your personality. In addition, you may inherit a disease from your parents such as cancer. Not only do your parents effect you traits but the environment does so as well. For instance, the sun may change the color of your skin or your hair. Also, you can change the behavior of a dog, depending on how it is trained. To add on to the information I have taken in, I learned what homozygous is. Homozygous is having two of the same allele for a trait. An example of this would be if two parents had a hitchhiker thumb, then the child will have them too because the parents alleles are the same.