What did Mendel call the two kinds of traits exhibited by the pea plants (one coming from the father, one from the mother)?
B. Elective traits
What is the dominant trait?
A. yellow pea seeds
B. green pea seeds
C. there is no dominant seed
D. Jolly green giant
An organism’s appearance is known as its
Two plants are crossed, resulting in offspring with a 3:1 ratio for a particular trait. What does this suggest?
A. that the parents were true-breeding for contrasting traits
B. that the trait shows incomplete dominance
C. that a blending of traits has occurred
D. that the parents were both heterozygous for a single trait
A. having identical pairs of genes for any given pair of hereditary characteristics.
B. Different things an organism can buy
C. The price of something
D. A disease
A chart used to show all the ways genes from two parents can combine and be passed to offspring is a
A. Pie chart
B. Line graph
C. Bar graph
D. Punnett Square
What are small stretches of DNA that code for traits
What relationship exists between genes and chromosomes?
A. Genes are located on chromosomes which are found in the nucleus of cells.
B. Genes produce chromosomes which transmit traits from one generation to another.
C. Genes are made up of chromosomes which move from the nucleus to the cytoplasm.
D. Genes and chromosomes produce alleles which determine the phenotype of offspring.
This type of cell has genetic material in the nucleus.
The exact genetic makeup of an organism, such as RR, Tt, PP is its?
Which of the following calculations require that you utilize the addition rule?
A. Calculate the probability of black offspring from the cross AaBb × AaBb, when B is the symbol for black.
B. Calculate the probability of children with both cystic fibrosis and polydactyly when parents are each heterozygous for both genes.
C. Calculate the probability of each of four children having cystic fibrosis if the parents are both heterozygous
D. Calculate the probability of a child having either sickle-cell anemia or cystic fibrosis if parents are each heterozygous for both.
(Grey fur (G) is dominant over white fur (g) and Black eyes (B) are dominant over red eyes(b))
A male rabbit GGbb crossed with a female rabbit with ggBb.
How many out of 16, have grey fur and red eyes?
In mice, black fur (B) is dominant to white fur (b). According to the Punnett square shown, the offspring in box 4 would:
A. be white.
B. be heterozygous.
C. be gray.
D. be homozygous.
To ensure scientific results are valid, what should you do during an experiment?
A. Conduct multiple trials.
B. Change hypothesis to fit result.
C. Have more then one independent variable.
D. Ignore results.
A change in the genetic code of an organism and can be caused by radiation and chemicals
A. genetic engineering
B. selective breeding
A. an organism’s physical appearance or visible traits
B. an organism’s genetic makeup or allele combination
C. the offspring of many generations that have the same traits
D. a change in a gene or chromosome
When parents with different traits are bred, a trait that reappears in the second generation after disappearing in the first generation is a
A. dominant trait
B. true-breeding trait
C. recessive trait
What are the levels of organization in the human body from smallest to largest?
A. tissues, cells, systems, organs
B. organs, tissues, cells, systems
C. organ systems, organs, tissues, cells
D. cells, tissues, organs, organ systems
Which of the following cell types is formed by meiosis?
A. muscle cells
B. skin cells
C. sperm cells
D. blood cells
The heart and blood vessels are in which system?
A segment of DNA that codes for a trait is called
How much of your DNA do you inherit from your mom?
D. it varies
Which of the following is the best statement of the use of the addition rule of probability?
A. the probability that two or more independent events will both occur
B. the probability that two or more independent events will both occur in the offspring of one set of parents
C. the probability that either one of two independent events will occur
D. the probability of producing two or more heterozygous offspring
What kind of traits seem to disappear in the first generation?
C. dominant traits
D. recessive traits
When you cross two parents, each parent is responsible for passing _______ of their two alleles for each individual trait.
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