A&P II Chapter 29 Reading – Flashcards

What phenotype is associated with the genotype 47, XXY?

Which of the following does NOT match the term to its correct definition/description?

Which statement is most correct?

An allele that can mask another allele is said to be __________.

Your phenotype is the physical output of your genotype.

Your genotype is a description of your combination of alleles for a given phenotype.

How many chromosomes are in a haploid human cell?

Why are both paternal and maternal chromosomes present in some gametes?

During what phase of meiosis do the tetrads align together in preparation for being separated?

Chimpanzees have a diploid number of 48. How many total chromosomes should each of their diploid body cells have?

What is the result of one chromatid segment forming a chiasma with a homologous chromatid segment?

Which of the following is specifically associated with the formation and dissociation of chiasmata?

During metaphase of meiosis I, homologous chromosomes and the alleles they possess are distributed to different gametes. What is this called?

For a cell with five homologous pairs, calculate how many different gamete types can result from meiosis.

Suppose that a child received one of the purple chromosomes (top) from their father and one of the green ones (bottom) from their mother. What he or she look like?

In this figure, hair color genes and eye color genes are located on the same chromosome. Since these genes are transmitted as a unit to daughter cells during mitosis, we describe these genes as __________.

Which of the following is NOT a source of genetic variation?

What is the probability of the same couple having three girls in a row?

Which of the following is NOT a source of genetic diversity that arises during meiosis?

Genes on the same chromosome are said to be __________.

Using the information provided in this figure, what is the probability of producing a homozygous dominant offspring?

The ability to roll the tongue into a U shape may be assigned to a single dominant allele, T. Using the information provided in this figure, what is the probability of producing an offspring who can roll his or her tongue?

The ability to roll the tongue into a U shape may be assigned to a single dominant allele, T. Suppose a homozygous tongue roller had a child with a heterozygous tongue roller. What proportion of their children could roll their tongues?

Using the information provided in this figure, what is the probability of producing an offspring who CANNOT roll his or her tongue?

Using the information provided in this figure, what is the genotype of a homozygous recessive offspring?

Which of these genetic conditions is displayed by the tongue-rolling example in this figure?

Which of the following terms applies to a continuous phenotypic variation between two extremes?

At least three genes control skin color. How many possible combinations of skin color result from those three genes?

Which of the following exemplifies polygenic inheritance?

What type of fetal testing provides results within a day or so of the test?

At how many weeks of pregnancy can chorionic villus sampling (CVS) be safely performed?

During amniocentesis, a needle withdraws fluid from __________.

What type of inheritance uses multiple gene loci to produce one overall phenotype?

Which type of inheritance involves genes found on the non-autosomal chromosomes?

Freckles are a completely dominant trait. Both of Jason's parents have freckles. Jason does NOT have freckles. What type of inheritance describes this situation?

If two parents are heterozygous (Tt) for a trait, which of the following is NOT a possibility for their offspring?

Because lethal dominant genes are always expressed and result in the death of the embryo, fetus, or child, dominant gene disorders are NOT seen among adults.

Which of the following is an example of a disorder that exhibits incomplete dominance?

The X and Y sex chromosomes are NOT homologous.

Skin color, controlled by three separately inherited genes that each exist in two allelic forms (A, a; B, b; C, c), is an example of which form of inheritance?

Use the following information to solve the problem using a Punnett square. Assume that the dominant "B" allele encodes brown eyes and the recessive "b" allele encodes blue eyes. An individual with the genotype BB has children by mating with an individual of the genotype bb. What is the percent chance that they would have children with blue eyes?

The genetic determination of blood type is based on __________ inheritance.

Sam has type A blood. Which of the following blood types are NOT at all possible for Sam's offspring?

Which of the following are NOT a part of the genome control system?

Nuclear DNA is NOT the only source of genetic information in the cell. Which of the following is another source of DNA in the cell?

Which of the following is a noninvasive method for predicting genetic disease?

Pedigrees and blood tests are both means of __________.