Genetics and Heredity

AATGCCATC What is the complementary DNA strand

• UUTGCCUTC

• GGTCAAGTC

• UUACGGUAG

• TTACGGTAG

How many strands does DNA have

• 4

• 2

• 1

• 3

Central Dogma states that

• DNA-> RNA-> Proteins

• RNA->DNA->Proteins

• DNA->Proteins->RNA

• Proteins->RNA->DNA

How many chromosomes do Humans have

• 23

• 2

• 46

• 64

Transcribe the following DNA sequence TCCAGCATTACG

• AGGTCGTAATGC

• AGGUCGUAAUGC

• AGGTCGTAATGC

• UCCAGCAUUACG

Guanine always pairs with

• Adenine

• Thymine

• Uracil

• Cytosine

The passing of traits from parent to offspring 

• Heredity 
• Genetics 
• Hybrid 
• Probability 

 which is heterozygous ?  

• Tt
• TT

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb