Genetics + Inheritance Flashcards
What is variation?
The presence of differences between living things of the same species is called variation.
What are genes?
Genes are strands of DNA that code for one characteristic
Every Cell Has Genes- True or False
True
How many chromosomes do we have?
We have 46 chromosomes and 23 pairs.
What DNA stand for?
deoxyribonucleic acid
What is a nucleus?
A nucleus is the brain of the cell
What are chromosomes?
Chromosome is a structure in the nucleus that consists of DNA
What is DNA?
DNA is the molecule in the nucleus that carries our genetic code
What is an allele?
An allele is a different/ alternate form of a gene.
Wha is a dominant allele?
A dominant allele is always expressed if present
What is a recessive allele?
A recessive allele is only expressed if there are 2 recessive alleles present.
What are homozygous alleles?
Homozygous is where 2 alleles have to be the same.
What is heterozygous alleles?
Heterozygous is where you have to have 2 different alleles
What is the substance of DNA like?
DNA is like snot
What is a genotype?
Genotypes are an allele pair