7.6 Test Review - Inheritance of Traits

A physical characteristic of a person that can be passed down from generation to generation, like from a parent to a child is called a(n) _______________________.

• Gene

• Mendel trait

• Inherited trait

• Acquired trait

The organelle that contains all of the genetic information in cells is called the _______________.

• Ribosome

• Allele

• Cytoplasm

• Nucleus

Special structures of tightly wound genes that are visible under a microscope are called ____________________.

• Nucleus

• Chromosomes

• DNA

• Alleles

The number of chromosomes in the cells of an adult gamete or reproductive cell is _______.

• 11

• 23

• 46

• 92

This is a molecule in our body that is made up of a chain of amino acids. This molecule performs tasks like sensing stimuli and regulating our bodies.

• Genes

• Receptors

• DNA

• Protein

What are the chemical building blocks that make up genes?

• Amino acids

• Chromosomes

• Gene

• opsins

The genetic code sequence that contains the instructions to build proteins is located on a _____________________.

• Protein

• Chromosome

• Gene

• Signal

The “stronger” allele, or the one that shows up more often in a population is called_____________.

• Dominant

• Recessive

• Homozygous

• Heterozygous

What is the term we use to describe slightly different versions of the same gene, which often make proteins that have a different shape and function?

• Receptors

• Sexual reproduction

• Alleles

• Nucleus

If an organism has two of the same versions of a gene they are considered to have a ________________ genotype.

• Heterozygous

• Homozygous

• Receptors

• Phenotype