answersLogoWhite

0

Genetics

User Avatar

Margaret Ruecker

Lvl 9
βˆ™ 2021-09-30 20:42:02
β˜†β˜…β˜†β˜…β˜†β˜…β˜†β˜…β˜†β˜…
No Reviews
Leave the first rating

Select your study mode:

Rate this Study Guide:

β˜†β˜…β˜†β˜…β˜†β˜…β˜†β˜…β˜†β˜…
Cards in this guide (20)
What is evolutionary theory

It is the primary theory in biology that states life on earth has changed over time due to inheritable changes in DNA. Different species originated in response to varying environmental conditions.

A scientific theory is based on an observable phenomena, like gravity. A theory is the result of a positive test result, and accumulated positive test results that creates the sound basis for how something occurs. If there is no positive test result, it remains an unsubstantiated idea, or hypothesis.

Evolution is the process of physical change, over an extended period of time, that has been slowly accumulating positive test results, to the point where it can now be declared as fact.

Evolution via natural selection, or simply "the theory of evolution," suggests that any imperfect replication scheme coupled with some selection function (in our case the natural environment) will ultimately result in modifications to species.

What are the tough leathery eggs of reptiles and birds called

amnionic eggs

What kind of mammals lay amnionic eggs

Monotremes lay amniotic eggs. Monotremes include just the platypus, the short-beaked echidna and the long-beaked echidna.
There are two mammals that lay amniotic eggs. The two mammals that lay amniotic eggs are echidna and platypus.

What is meant by fitness in Darwinian evolution

the ability to survive and reproduce keep fit and healthy

Which of these is a sex-linked recessive disorder

The sex-linked recessive disorder is muscular dystrophy.
A sex-linked disorder is one in which both matching genes must be abnormal for the disease to occur. The term sex-linked recessive usually refers to X-linked recessive. Males have only one X chromosome, so a single recessive gene on that X chromosome will cause a disease (such as hemophilia).

Approximately when did the mass extinction of dinosaurs occur

65 million years ago

What is the slime layer that surrounds gram negative bacteria and keeps them from taking up purple stain
With the exception of algae all protists are what type of eukaryotes

Protists, with the exception of algae, are unicellular.

What does each single codon stand for or code for protein production to stop

an amino acid

What term is defined as the tendency of some members of a population to be better able to survive and reproduce and pass on their characteristics

The term is "fitness" and the phrase "survival of the fittest" is also expressed by the term natural selection.

Fitness is defined as the tendency of some members of a population to be better able to survive and reproduce and pass on their characteristics.

Approximately what percent of the species that have ever existed are on earth today

0.1%

For what type of organisms is species a difficult term to define

Asexual reproduction creates duplicate organisms in which mutation occurs by a different process than sexual specialization.

*Viruses, because they can mutate to have different specific hosts or effects, are sometimes considered "non-living" despite their ability to reproduce and change.

What term describes protists that may be either free-living or get nutrients from host organisms

parasitic

Why does extinction of one species or development of a new one often affect many others

because of the interdependence of living things The extinction of one species or development of a new one often affect many others because of their interdependence in an ecosystem.

Why do people become addicted to tobacco and drugs

Because of chemical reaction in the brain

What visual aid is a like a family tree and shows the phylogenic relationships of organisms

cladogram

What are the complex filtering organs of vertebrates called -

Complex filtering organs in the back of the body are kidneys.

What kind of growth involves roots and shoots but not reproductive structers and occurs in most plants

The kind of growth which involves roots and shoots but not the reproductive structers which occurs in most plants is known as apomixis.

What Tunicates and lancelets are two subphyla of animals classified as what

Tunicates and lancelets are two subphyla of animals classified as what

Which of these is an example of macroevolution

Birds are thought to be direct descendents of reptiles

Related study guides

Biology

28 cards

What molecule is split during the light reactions of photosynthesis to release oxygen

Which of these is an example of microevolution

During what cycle do a series of reactions occur in the mitochondria which release carbon dioxide and produce some ATP

What is the process through which prokaryotic organisms reproduce asexually

➑️
See all cards

Biology

28 cards

Where are asexual spores formed

What about the modern organisms Darwin studied led him to the idea of descent with modification

What is meant by fitness in Darwinian evolution

What most likely killed the dinosaurs

➑️
See all cards

Biology

29 cards

What color are field mice

What kind of compound would be least likely to dissolve in water

What is meant by fitness in Darwinian evolution

What kinds of organisms survived the mass extinction that killed the dinosaurs

➑️
See all cards

Biology

32 cards

What color are field mice

How does the biogeography of fossils support evolutionary theory

What term defines chance changes in allele frequency that have a big effect in small populations

What kinds of organisms survived the mass extinction that killed the dinosaurs

➑️
See all cards

Biology

31 cards

What color are field mice

How does the biogeography of fossils support evolutionary theory

What term defines chance changes in allele frequency that have a big effect in small populations

What kinds of organisms survived the mass extinction that killed the dinosaurs

➑️
See all cards