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Unit 4
probability review
| Question | Answer |
|---|---|
| Sweating, which helps cool the body by evaporating, or goose bumps and shivering when you are cold are examples of maintaining _______________ in the body. | homeostasis |
| An animal’s ____________, such as a wood pecker’s long beak, are changes to the structure or behavior that allow them to survive in their environments. | adaptations |
| What type of adaptions do desert animals have to survive? | A. Long appendages (legs, ears, etc.), or small "bodies" to aid in cooling B. They are active at night. C. Pale colors to take in less heat and blend in. |
| How does fever help the body fight infection? | Fever is a response to help fight the infection by slowing the growth of bacteria. |
| What does a sneeze do to help the body fight infection? | It is a barrier defense that forces the foreign material (like pollen or dust) out of the body to avoid illness. |
| When we run or exercise, how does our body respond? | Our body’s heart and breathing rates increase to deliver more oxygen to the body. |
| More people have free ear lobes than attached ear lobes. Based on what you know about genetics, what could explain this? | The trait to have free ear lobes is a dominant trait. |
| How many alleles (genes) does a parent contribute for a trait? | One from each parent for a total of 2. |
| What is the Law of Dominance by Gregor Mendel? | Traits exist in two forms and the dominant trait will mask the expression of the recessive trait. |
| List examples of hereditary traits that can be genetically passed on from one generation to the next. | Hair type, hair color, dimples, eye color, shape of face, right handedness, left handedness, skin color |
| Work the Punnett square below. If a heterozygous black rabbit (Bb) is crossed with a homozygous white rabbit (bb), what is the probability that an offspring will have black fur? | 50% Bb, bb, Bb, bb |
| The parent genotypes for hair color for two labs are: Father cc Mother CC Work the Punnett square and then complete the possible genotypes and hair color of the offspring. Homozygous recessive: _% Homozygous dominate: __% Heterozygous: | Cc Cc Cc Cc Homozygous recessive: _0_% Homozygous dominant: __0__% Heterozygous: _100_% |
| List different types of asexual reproduction and give examples. | a.Fission-bacteria b.Cuttings-ivy plant c.Budding- potatoes, sponges |
| __________ reproduction gives a greater variety of traits because there is more diversity from two parents | Sexual |
| What does the use of the following letter codes for genotypes tell a geneticist? a.BB- b.bb c.Bb- | a.BB-2 dominant alleles/ homozygous dominant b.bb-2 recessive alleles/ homozygous recessive c.Bb-1 dominant and 1 recessive alleles/ heterozygous |
| What an organism physically looks like (tall, short) is an organism’s ____________ | phenotype |
| A _________ is when genetic information does not copy correctly. | mutation |
| Hair color, eye color, rolling your tongue, and dimples are all _______ passed from one generation to the next. | traits |
| Traits for specific characteristics are carried on alleles located on genes on ____________. | chromosomes |
| The ____1____ of the cell holds the ___2____, which is the genetic blueprint for the traits of an organism. | 1. nucleus 2. DNA |
| When an animal has a ____1____ and recessive trait for black and white fur, the animal will show the dominant trait and have ___2___ fur. | 1. dominate 2. black |
| The process by which organisms that are better adapted to their environment are more likely to survive and reproduce than organisms of the same species is known as _______ _________. | natural selection |
| When race horses are bred for specific characteristics it is known as _______ ______. | selective breeding |
| Plants have different signals for attracting pollinators. It is not uncommon for the same plant to have more than one signal. Name a few: | smell, color, patterns, texture |
| Plants can be pollinated by _____, _________, and ______________. | wind, animals, and self- pollinated. |
| One adaptation of the snowshoe hare is that it is ______ in the summer and _______ in the winter for camouflage. | 1. brown 2. white |
| For question number 26, see target option | C. Albizia julibrissin |
| For question number 27, see target option | H. Pusa hispida |
Created by:
dkohring
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