Heredity and Heritability — Unit test Answers

The diagram below shows a portion of DNA. The nucleobases adenine, thymine, cytosine, and guanine are matched together in base pairs, and the order of these base pairs makes a genetic code. Which describes the genetic code in a human?

A child has inherited a dominant trait for straight hair (S) from one parent and a recessive trait for wavy hair from the other parent. Which describes the child’s genotype and alleles for hair type?

Which statement correctly describes the organization of DNA and its related structures?

Hemophilia is a sex-linked disorder in which a person’s blood clots very slowly or not at all. Why are males more likely to inherit hemophilia than females?

A mutation is any change in the DNA of a gene or another related structure called a chromosome. Some mutations naturally occur during DNA replication as DNA is being copied. Which molecule is responsible for these types of mutations?

Which statement describes a characteristic that is shared by both genotypes and phenotypes?

Which of the following is the smallest living unit?

Which genetic condition is considered a single-gene disorder?

The diagram below models the relative sizes of particles found in an atom. x ynot to scaleWhich list correctly identifies each particle?

An athlete needs a quick energy source before running a race. Which type of food would be most helpful in providing this energy?

What are the three main areas of study within anatomy?

Earlobe type is an inherited trait and can be described as attached or detached. Earlobe type is a ____________ that is coded by a person’s __________.

The diagram below shows a basic step involved in respiration. Glucose is a carbohydrate. What reacts with glucose in order to complete this step?

Which statement describes how a molecule of water is formed?

What parts of the human anatomy would a heart surgeon need to study to be able to most effectively do his job?