Which option is a heterozygous allele?
BB
Bb
bb
What is a gene?
Part of the mitochondria
Information made out of chromosomes
A small section of DNA
A diploid cell
What is a molecule of DNA (nucleotide) made of?
A triphosphate, a hexose sugar, and a nitrogenous base
A phosphate, a hexose sugar, and a nitrogenous base
A phosphate, a pentose sugar, and a nitrogenous base
A biphosphate, a pentose sugar, and a nitrogenous base
Which option is a homozygous dominant allele?
Bb
bb
BB
What is the percentage chance of the offspring inheriting the dominant allele?
75%
100%
0%
50%
Which example is an inherited disorder?
The Flu
Cancer
Cystic Fibrosis
Type 2 Diabetes
What nitrogenous bases are found in DNA?
A, B, C, D
A, T, C, G
A, B, T, H
A, R, U, G
Which genotype would produce the female phenotype?
XY
XX
What is a gamete?
Sex cell
Body cell
Section of DNA
Diploid cell
Which option is a homozygous recessive allele?
bb
BB
Bb
What is a chromosome?
Long thread of DNA
It controls what goes in and out of the cell
A jelly like substance
A gene
What is the probability of a mother and father producing a boy?
100%
50%
0%
33%
What does phenotype mean?
A collection of chromosomes within an individual
The mutations found within certain strands of DNA
The characteristics expressed by a collection of alleles
Which genotype would produce the male phenotype?
XX
XY
How many pairs of chromosomes does a human body cell contain in the nucleus?
46
23
48
24
What is an allele?
Two or more chromosomes
The genotype
A sex cell
Different versions of the same gene
What is the percentage chance of the offspring having the homozygous recessive genotype?
25%
100%
0%
50%
How many affected males are in the pedigree analysis chart?
4
3
7
5