Science Final-Heredity

1. Which of the following have you inherited completely from your parents? Choose the best answer.

• The shape of your blood cells

• Your intelligence

• Your personality

• Your weight

What is heredity?

• The passing of traditions from parents to their children.

• A type of asexual reproduction.

• The passing of traits from parents to offspring.

• Another term for sexual reproduction.

What can you conclude about Gregor Mendel from the information presented in the movie?

• Religious authorities forced him to stop his experiments

• He was one of the first researchers to establish how heredity worked

• He concluded that heredity worked for people as well as plants

• He established all the principles of modern genetics

Which term best describes how Mendel conducted his experiments?

• Occasionally

• Carelessly

• Diligently

• Quickly

When two pea plants with Tt genotypes are crossbred, how many short (tt) plants will there most likely be in the new generation?

• 1 out of 4

• 1 out of 2

• 1 out of 6

• 1 out of 8

A Punnett square showing the cross between two pea plants is shown. In pea plants, the smooth coat allele (R) is dominant over the wrinkled coat allele (r). One part of the Punnett square is filled in, but the remainder is blank. Which of the following best describes the correct method for filling in the remainder of the squares? (Rr = top right, rR = bottom left)

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A complete Punnett square here shows a cross between two mice with different fur color, agouti (A) and black (a). This Punnett square can be used to make which of the following conclusions?

• Two agouti mice can’t produce offspring with black fur.

• Eventually, all the mice that descend from this pair will have black fur.

• The trait of agouti fur is an advantage to mice for avoiding predators.

• The trait of agouti fur is dominant over the trait of black fur.

Two brown-eyed parents can produce a child with blue eyes. Which of the following best explains how this is possible?

• Blue eyes are an adaptation that can help the survival of humans.

• Over many generations some characteristics become more frequent.

• Eye color is always a mixture of the traits of both parents.

• The genes passed on by the parents can combine in a new way in the child.

The offspring of sexually reproducing organisms can be distinguished from the offspring of asexually reproducing organisms by studying which of the following?

• The average amount of time involved between fertilization and birth of the offspring

• The relative sizes in height of the organisms when they reach adulthood

• The extent of variety in the genetic information in the population of offspring

• The diet and habitat requirements for each individual organism

Any individual offspring produced through asexual reproduction is always:

• genetically identical to its parent.

• made up of cells with a cell wall.

• different from all of its siblings.

• very slow to develop and grow.