The _________ lived at the same time as early Homo sapiens and also had organized societies.
A cave in France has some ancient prehistoric artwork. What type of hominid likely made the art?
If you see a fossil fish in a museum that is labeled one of the earliest fish known, what era is it probably from?
Cyanobacteria, which first appeared on Earth over 3 billion years ago, are _______ cells.
_________ changed life on Earth by producing food from light through the process of Photosynthesis.
oceans and underground
BEFORE an ozone layer formed to reduce radiation, life existed in __________ and __________.
Darwin theorized that individuals having and advantage due to their traits or abilities will be more likely to survive and reproduce. His theory is known as ___________.
The fact that an organism's offspring are not identical to the parent is known as ________.
predators, starvation, disease, and competition
Populations of all species are limited by ________, __________, _________, and __________.
A spider may produce hundreds of eggs, only a few of which may survive. This is an example of ________.
A characteristic that can be passed on from parent to offspring through genes is called a ____.
The _____ process often begins by a portion of a population becoming physically or geographically separated.
Over time, animals may change behavior or physical appearance in response to changes in the environment, which is ________.
The trace remains of an organsim that lived long ago, most commonly preserved in sedimentary rock are a ____________.
Over time, when animals may change behavior or physical appearance in response to changes in the evnironment it is called _________.
DNA, traits, and fossils
Scientist compare ___, __________, and ______ to determine whether organisms share a common ancestor.
crushing, melting, moving, and eroding
Environmental factors can cause a fossil to be destroyed such as _____, ___________, __________, and _________.
sediment, frozen, amber, and tar
Fossils can be formed by several means including: being buried in _______, the organism can be ______ very quickly, the organism can get trapped in _________, or the organism can get trapped in ____.
If there are 24 chromosomes in a pea plant, how many chromosomes are present in a sex cell of a pea plant?
_______ developed a square that is used to visualize all the possible combinations of alleles in offspring resulting from a genetic cross.
The trait that seems to recede in the background in the first-generation offspring is the _____________.
When pollen frome one flower can fertilize the eggs of the same flower it is said to be _______________.
The set of instructions for each characteristic donated by the parent to the offspring is called ______.
When a __________ plant self pollinates, it will always produce offspring with the same traits as the parent plant has.
3 purple, 1 white
If a purple flower with the genotype Pp (P = purple, p = white) self pollinates, the phenotypes for the offspring would be __________.
If you cross two rabbits that have the genotype Bb, how many possible genotypes can be found in the offspring?
If you cross a white flower (with the genotype pp) with a purple flower (with the genotype PP), the possible genotypes of the offspring are ____.
In __________ II of Meiosis II, the nuclear membrane forms around the separated chromosomes, and the cell divides.
In _________ II of Meiosis II, the chromatids pull apart and move to opposite ends of the cell.
In ________ I in Meiosis I, the nuclear membrane re-forms and the cell divides, the pared chromatids remain joined.
In __________ I of Meiosis I, the chromosomes separate from their homologous partners and move to opposite poles of each cell.
In __________ I of Meiosis I, pairs of homologous chromosomes line up at the cell's equator.
In __________ of Meiosis I, each chromosome makes an identical copy of itself, forming chromatids
How many sets of instructions for each characteristic does a fertilized egg receive from EACH parent?
At the end of the replication process, each of the new _____ molecules is composed of one new and original strand.
deletion (frameshift mutation)
An original base sequence of DNA, AAA CCC GGG changes to AAA CCG GG. This is known as a(n) ________________.
insertion (frameshift mutation)
An original base sequence of DNA, AAA CCC GGG changes to AAA CAC CGG G. This is known as a(n) ___________________.
substitution (point mutation)
An original base sequence of DNA is AAA CCC GGG changes to AAA CAC GGG. This mutation is known as a(n) ____________________.
Ultraviolet radiation from the sun is known to cause mutations in ______ cells that can lead to cancer, which is why you should wear sunscreen in the summertime.
doesn't have trait
In a pedigree, a blank square or circle indicates that the person ___________________.
substitution (point mutation)
When one base replaces another base in a codon, the mutation is known as a _______________________.
A __________ mutation is when there is an upset in the codon grouping within a gene by adding or subtracting a base letter.
If a change occurs in a base sequence of a DNA codon, it might cause a different _____________ to be substituted in a protein.
If a mutation occurs in the DNA of ______ cells, it can be passed from one generation to the next.
A __________ in DNA could result in, a genetic disorder or disease, death, or no change at all.
The "factory" through which the "protein assembly line" or mRNA is fed is the ______________.
The human body contains about 50,000 different kinds of _________ which are made of amino acids.
All of the following are steps in making a ___________ : mRNA is decoded at the ribosome, copies of DNA are taken to the cytoplasm, and amino acids are joined together at the ribosome to make a protein.
GCT AGC CTA ATG
What would the complementary strand of DNA be for the sequence of bases: CGA TCG GAT TAC?
sugars and phosphates
In a DNA strand, the sides or the backbone of the "ladder" are made of _____________.
Chemist Rosalind Franklin was able to create images of DNA molecules using ____________.