Gregor Mendel’s experiments with pea plants helped him to establish several principles in genetics. The law of ____________explains how traits are inherited through generations.

An 8th-grade science teacher is working on her lesson plans for this month. Based on the information below, what is this science teacher planning on making sure her students understand?

A botanist is determining the growth factors of a particular plant species with two distinct phenotypes. One phenotype has red flowers, the other has white flowers. He runs several trials over the course of 3 months with varying amounts of rain each WEEK. He then measures the number of flowers that grew at least a foot tall. His results are recorded above.

A gardener wants to build a flower bed using this plant. But, he prefers white flowers to red flowers. How can he help increase the growth of white flowers, while reducing the growth of red flowers?

He should water the flower bed ______________.

"Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits. He recognized the mathematical patterns of inheritance from one generation to the next."

Through his work, Mendel published his experiments to explain his findings. What did his laws of inheritance state?

Select THREE choices

Examine the pedigree representing the familial inheritance of Cystic Fibrosis in three generations of a family.

Which of the following is TRUE about the trait (Cystic Fibrosis) represented by the pedigree?

A cross between a parent who is heterozygous for a trait and a parent who is homozygous recessive would result in what possible percentage for their offspring?

Environmental factors can affect an organism's appearance, behavior, and health. For example, in certain reptiles, the temperature of the environment may determine the sex of the offspring. Both genetics and environmental factors determine the observable, physical characteristics of organisms, also called their____________________ in genetics.

In pea plants, green pea pods are dominant over yellow pea pods. If a plant is homozygous for the recessive trait, what will its phenotype be?

In dogs, the gene for fur color has two alleles. One allele is received from the father and the other from the mother. The dominant allele (B) codes for black fur and the recessive allele (b) codes for brown fur.

A male dog who is heterozygous breeds with a female dog who is homozygous dominant. What would the GENOTYPIC probability be for their offspring?

Some people have a V-shaped hairline, while others have a straight hairline. The V-shaped hairline is called a "widow’s peak". The widow’s peak is a dominant inherited trait (W), and a straight hairline is a recessive inherited trait (w). Below is a family pedigree which identifies these different traits within a family.

Which of the statements below describes the missing alleles in Generation III?

True-bred plants are used by farmers to cross-pollinate two plants with the same trait in order to ensure that the offspring will also express the same trait. Gregor Mendel was an Austrian monk that noticed these patterns in pea plants. He began experimenting on true-breeding purple and white flowering pea plants. In his first experiment, Mendel cross-pollinated a true-breeding purple flowering plant with a true-breeding white flowering plant. The diagram below illustrates his first experiment.

Which of the following is the result of Mendel's experiment?

Gregor Mendel used pea plants in his experiments to deduce what would become the principles of genetics.

If a heterozygous tall pea plant, which is a dominant trait, is crossed with a short pea plant, what percent of the offspring will be heterozygous?

If a heterozygous tall pea plant, which is a dominant trait, is crossed with a short pea plant, what percent of the offspring will be short?

Red blood cells usually have a disc-shape and contain hemoglobin. Hemoglobin is the protein essential for carrying oxygen. If a mutation causes the structure of the protein to change it causes a recessive disease called sickle cell anemia. This creates a problem for the red blood cells to maintain the shape needed to carry oxygen throughout the body.

If a man with the sickle-cell disease marries a woman who carries the trait of the disease, what is the probability that they will have a child with sickle-cell?

In Mendel's experiment with pea plants, he observed the _________of the pea plants.

The basic principle of heredity is____________________.

The law of dominance is supported by the outcome of his cross between a yellow pea plant with a green (dominant) pea plant resulting in a __________pea plant offspring.

Natural selection is directly influenced by environmental and genetic factors. These factors can be influenced by using new technologies that can selectively pass along the strongest traits in a population.

What is an example of environmental influence?