Bio Mokkkk Flashcards
Big brain not big back (29 cards)
what is a mutation?
A permanent change in the DNA sequence.
what does it mean to be Inheritable?
something that can be passed off onto the offspring
what is a Phenotype?
a set of characteristics that you can physical see (hair, eye colour, ect)
what is a trait?
a specific characteristic of an individual, can be determined by genes.
What is natural selection?
Natural selection is a mechanism of evolution.
homozygous
brown
heterozygous
Blue or brown
What is an allele?
one of two or more versions of DNA sequence (a single base or a segment of bases) at a given genomic location
I DONT KNOW
What is a gene pool?
the combination of all the genes (including alleles) present in a reproducing population or species.
What is a genome
The complete set of DNA (genetic material) in an organism
What is pure breeding?
an alive thingy that undergo self-fertilisation for several generations, such that their traits under consideration remain unchanged.
(has two of the same alleles homozygous)
A plant making another plant without doing hanky panky
What is a Carrier?
An individual which is heterozygous (has two different alleles)
What is Immigration
When new individuals enter a new population
What is Emigration
When individuals leave a population
What is a gene?
A segment of DNA (deoxyribonucleic acid) that contains instructions for producing biological molecules, usually protein.
What is a Chromosome
A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.
How many genes do humans have?
20,000
What percentage of our genome is made up of genes?
2%
How many bases make up our genetic information? (genome)
More than 3 billion bases
Where can we find our genome?
The nucleus of a cell
What percentage of our genome is identical to every other human being?
99.8%
What is a Phylogenetic tree
a diagram that represents the relatedness of organisms.
What is conservation
The careful maintenance and upkeep of a natural resource to prevent it from disappearing.
How many Kakapos are left?
Kakapos are critically endangered species in Aotearoa, with only 247 birds alive today.