Traits, Genes & Reproduction

______________ are characteristics that distinguishes one organism from another organism.

• Traits

• Genes

• Descriptions

• Chromosomes

Identifying that an elephant has a trunk, fish have gills, tigers have stripes, and orca whales are black and white is an example of identifying animals ___________________.

• Reproduction

• Chromosome

• Gene

• Traits

Inside of the nucleus there are threadlike structures that contain genetic information from both parent cells that control the organisms traits. Those threadlike structures are called ______________.

• Memory Log

• Gene

• Chromosome

• Nucleic Acid

What is a set of an organisms observable traits that CAN change during the organism's lifetime due to age and environmental change?

• Phenotype

• Genotype

• Traits

• DNA

The complete set of an organisms genes is a ____________. This typically does not change throughout the life on an organism.

• Chromosome

• Genotype

• Phenotype

• Traits

A change in the DNA code of a gene is classified as a _____________________.

• Environmental Influece

• Chromosomal Change

• Natural Alteration

• Mutation

Unlike eukaryotic cell, prokaryotic cells go through the process of ______________ and split into genetically identical cells.

• Fission

• Fusion

• Fertilization

• Meiosis

Complete the following statement.

A key advantage of sexual reproduction is.....

• that genes do not change.

• that genes pair with similar genes.

• that sexual reproduction creates diversity in a species.

• that the opposite gender is not required.

An advantage of asexual reproduction is:

• genetically identical to the parent organism.

• enables organisms to reproduce without a mate.

• little genetic variation.

• both good and bad mutations will be passed down to the offspring.

Fertilization is...........

• the process of the egg cell and sperm cell joining together.

• the female sex cell that is formed in the ovary.

• the male sex cell that is formed in the testis.

• the new cell that is formed due to fertilization.