A threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
100
Define traits.
a distinguishing quality or characteristic, typically one belonging to a person.
100
Which one forms from asexual reproduction?
Mitosis
100
What are some benefits of asexual reproduction?
-identical to parent, so the offspring will get all the good characteristics
-easy; don't need mate
- can duplicate lots of offspring in a short time
100
What are Genes?
What are Trace fossils?
gene: a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
trace fossils: a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself.
200
Who do our chromosome traits come from?
Our parents.
200
Define genes and variation.
genes: Is a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring
variation: a different or distinct form or version of something.
200
Which one has 8 phases?
Meiosis
200
What is a zygote?
-a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum
200
What theory did Charles Darwin come up with?
Natural Selection
300
What is a Diploid?
What is a Diploid?
cells that have pairs of chromosomes
300
What are some benefits of sexual reproduction?
v-genetic variety and/or diversity of offspring (color, shape size, intelligence, ability, etc.)
-Natural Selection; more able to adapt to environment changes
-Large, complex organisms
300
What does mitosis do and what are the 4 phases?
Mitosis: Is when the nucleus and its contents divide. Mitosis is associated with Asexual reproduction.
4 phases: 1) Prophase 2) Metaphase, 3) Anaphase
4) Telephase
300
What is RNA and what are the pairs?
-It is Ribonucleic Acid and it is present on all living cells
-Its main job is to act like a messenger carrying instructions from DNA for controlling the synthesis of proteins
-What makes up RNA?
Adenine, Uracil, Cytosine, Guanine
-What pair of RNA go together?
Adenine + Uracil
Cytosine + Guanine
300
What are P & S waves?
A wave is a vibration that transfers energy from one place to another without transferring matter (solid, liquid or gas). Light and sound both travel in this way.
Energy released during an earthquake travels in the form of waves around the Earth. Two types of seismic wave exist, P- and S-waves. They are different in the way that they travel through the Earth.
P-waves (P stands for primary) arrive at the detector first. They are longitudinal waves which mean the vibrations are along the same direction as the direction of travel. Other examples of longitudinal waves include sound waves and waves in a stretched spring.
S-waves (S stands for secondary) arrive at the detector of a seismometer second. They are transverse waves which mean the vibrations are at right angles to the direction of travel. Other examples of transverse waves include light waves and water waves.
400
What is a Haploid?
cells that have only one chromosomes from, each pair
400
What is diversity in the science world?
Diversity: the variability among living organisms from all sources including, marine and other aquatic ecosystems and the ecological complexes of which they are a part; this includes diversity within species, between species and of ecosystems.
400
What does meiosis do and how many phases are there?
Meiosis: Is a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores. (Sexual Reproduction)
8 Phases
400
What does DNA stand for?
deoxyribonucleic acid
400
What is Heredity?
the passing on of physical or mental characteristics genetically from one generation to another
500
How many chromosomes do humans have?
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.
500
What is Natural Selection and who came up with the theory.
What is Natural Selection and who came up with the theory.
Natural Selection: for survival if an organism can pass on certain traits and have more offspring they will have a great chance to survive
Charles Darwin: he is the one that came up the Theory of Natural Selection.