Unit Test — Cumulative exam Answers

Red-green color blindness is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree. Which individuals in the pedigree are identified and labeled carriers for red-green color blindness?

Which compound is produced during carbon fixation?

What happens to excess carbohydrates in animals?

What observation led researchers to propose that chloroplasts evolved from cyanobacteria?

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. A parakeet that is heterozygous for blue feathers (dominant) is crossed with a parakeet that is homozygous for white feathers (recessive). According to the Punnett square for this cross, what percentage of offspring is predicted to have blue feathers?

Which is a component of the modern cell theory that was not part of the original cell theory?

Which is an example of a lipid?

Which statement describes the F1 generation of a Mendelian monohybrid cross between two true-breeding parents?

What is the next step in the process after a substrate enters the active site of an enzyme?

Turner syndrome occurs in females who instead of having two X chromosomes have either only one X chromosome or a fragmented X chromosome. Klinefelter syndrome occurs in males who have multiple X chromosomes. Consider the karyotype.Which individual is shown in the karyotype?

Which of the following could be a nucleotide of DNA?

Unsaturated and saturated lipids exhibit different characteristics based on their structures. Which characteristic is unique to saturated fats?

Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is homozygous for attached earlobes. Which describes the genotypes of their offspring?

How many homologous chromosome alignments are possible for independent assortment during meiosis?

Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step. What should she do next?

Karyotypes can be studied to determine an organism’s chromosomal makeup and to detect genetic defects. Patau syndrome occurs when an individual has an extra copy of chromosome 13, giving them three copies. Symptoms of Patau syndrome include extra digits, seizures, and cleft palate. Which word would geneticists use to describe the cause of Patau syndrome?

The organic compound below consists of an adenine molecule (blue), a ribose (purple), and three phosphate groups (orange).Which compound is shown?

Which statement best compares transcription and translation?

Which is the most efficient way to avoid DNA mutations from UV radiation?

Why are algae and ferns both green?