What is the best way to describe a gene?
A gene is the fundamental physical and functional unit that makes up our genetic heritage. DNA is the basis of genes. Some genes are instructions for making proteins, which are molecules. Many genes don’t code for proteins.
What is the physical expression of genes?
A genotype refers to the combination of genes within an organism that is responsible for a specific trait. The physical expression of these genes is an organism’s phenotype.
Is a gene a physical trait?
Physical characteristics are observable traits that are determined by particular segments of DNA, called genes. Multiple genes can be grouped together to create chromosomes. These chromosomes are located in the nucleus. Each gene is found in every cell, except eggs and sperm.
Which describes a gene quizlet?
Which is the best way to describe a gene? A DNA segment that codes for a trait. What is the relationship between genes and chromosomes? Genes can be found on chromosomes. Which is the best description of the offspring born to parents with recessive traits?
Which is an example of gene therapy quizlet?
Which one of the following is an example of gene therapy technology. A nasal spray that contains the normal gene but is deficient in cystic fibrosis patients. You just studied 98 terms!
What contain the genes of an individual?
Chromosomes, structures in cells that contain the genes of a person, are Chromosomes. The cell nucleus contains chromosomes that contain genes. A chromosome can contain hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes.
What are the versions of a gene called?
“Allele is the term we use to describe alternative forms or variants of a gene. Each autosomal gene is passed down from one parent to each child. We tend to group the alleles together. They are usually referred to as normal, wild-type, abnormal, or mutant.
Which genes are more dominant?
Maternal genes are more dominant than those of the mother.
What are three examples of physical traits affected by the environment?
Correct Answer: Explanation. Environmental factors have an impact on traits in animals and plants. These traits include weight, height and size as well as color. A child who does not receive adequate nutrition may have a stunted height as an adult.
What are the basics of heredity?
Genes is a small section of the long DNA chain. They are the fundamental physical and functional units of hereditary biology. Genes can range in size between a few hundred DNA bases and more than 2 million bases. The Human Genome Project has estimated that humans have between 20,000 and 25,000 genes.