12 Questions
What is the material responsible for the likeness between parents and their offspring?
DNA (Deoxyribose Nucleic Acid)
Where is most of the DNA in a person's body located?
Most DNA is located in the cell nucleus, but a small amount of DNA can also be found in the mitochondria.
What are the three main parts that make up each nucleotide in DNA?
- A sugar (ribose), 2. A phosphate molecule, and 3. A nitrogenous base.
What are the four nitrogenous bases found in DNA?
The four nitrogenous bases found in DNA are: 1. Adenine, 2. Thymine, 3. Cytosine, and 4. Guanine.
How many chromosomes are present in human body cells (somatic cells) and human reproductive cells (sex cells)?
Human body cells (somatic cells) have 46 chromosomes, while human reproductive cells (sex cells) have 23 chromosomes.
How are the genes on chromosomes arranged?
Genes are arranged on a chromosome in order, one next to another, much like beads on a necklace.
What is genetics?
Genetics is the science that deals with heredity and the factors affecting transmission of characteristics from one generation to another.
What is the zygote?
The zygote is the first cell of a new organism, formed from the union of an egg cell and a sperm.
Where are the genes located within a cell?
The genes are located on the chromosomes, which are threadlike parts found in the nucleus of a cell.
How are biological traits passed from one generation to the next?
Biological traits are passed as chemical messages in the chromosomes encoded on DNA molecules.
What is the role of DNA in inheritance?
DNA serves as a blueprint of life, carrying the genetic information that determines the traits of an organism.
What do people notice about children and their parents?
People notice that children have certain traits or qualities that resemble those of their parents.
Test your knowledge on recombinant genetics, heredity, and the factors affecting the transmission of characteristics from one generation to another. Learn about how traits are passed down from parents to offspring.
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