DNA & Protein Synthesis
The shape of a DNA molecule.
double helix?
A section of DNA that codes for a trait.
What is a gene?
If B is dominant and b is recessive, which genotype(s) show the dominant phenotype?
What are BB and Bb?
The tool used to predict offspring probabilities.
What is a Punnett square?
Random changes in DNA are called these.
What are mutations?
The nitrogen base that pairs with adenine in DNA.
What is thymine?
The number of chromosomes found in a human body cell.
What is 46?
The scientist known as the Father of Genetics.
Who is Gregor Mendel?
When one allele completely masks another.
What is complete dominance?
Individuals with favourable traits survive and reproduce more often through this process.
What is natural selection?
A mutation changes the codon GAA to AAA. What happens to the protein?
What is one amino acid changes?
The word used to describe an organism's genetic makeup.
What is a genotype?
The genotype Bb is described as this.
What is heterozygous?
Red flowers crossed with white flowers produce pink offspring.
What is incomplete dominance?
Humans choosing which dogs breed is called this.
What is artificial selection?
What makes up a Nucleotides
What is sugar, phosphate and a nitrogenous base?
The observable characteristic of an organism.
What is a phenotype?
The genotype bb is described as this.
What is homozygous recessive?
Black feathers and white feathers both appear in the offspring.
What is co-dominance?
A drought occurs for several years. Plants with deeper roots survive and reproduce more often than plants with shallow roots.
What is deeper roots are an adaptation that increases fitness?
The process where ribosomes use mRNA to build proteins.
What is translation?
A human chromosome codes for about ________ different kinds of proteins!!
100,000
A heterozygous plant is crossed with a homozygous recessive plant. What percentage of offspring show the recessive trait?
What is 50%?
A colour-blind father (XⁿY) and normal mother (XᴺXᴺ) have children. What percentage of their sons will be colour-blind?
What is 0%?
A crop is bred so that nearly all plants have identical genes. What problems can occur?
What is low genetic diversity makes populations vulnerable to disease?