WorksheetsAnatomy chpt 25 heredity
Total questions: 29
Worksheet time: 18mins
The passing of traits from biological traits to children
heredity
genetics
DNA
genes
The study of inheritance
heredity
genetics
DNA
Ecology
Long strand of DNA found in the cells nucleus. total of 46 per individual
chromosome
DNA
Ribosome
Nucleolus
Segments of DNA that contain the traits each person inherits
Genes
Chromosomes
Proteins
Gametes contain 23 chromosomes
true
false
similar in structure , such as two similar chromosomes that are paired together
homologous
autosome
Replicate
Duplicate
chart that shows all the chromosomes arranged in order by size and structure
bar graph
karyotype
A graph that shows the genetic makeup of an organism
Chromosomes designated by the letters X and Y that determine gender
sex chromosomes
karyotype
autosomes
genes
The genetic information in male offspring is
inherited from both the father and the mother
inherited from only the father
inherited from only the mother
unique from that of either parent
Each chromosome contains anywhere from a few hundred to several thousand genes.
true
false
The location of a specific gene on a chromosome.
This allows the genes supplied by the egg to align with the similar genes supplied by the sperm.
locus
Chromosome
Genome
Non sex chromosomes. each pair of chromosomes consists of a chromosome inherited from the mother and a chromosome inherited from the father.
autosomes
Mitochondria
Genes
Chromatids
Each gamete produced by a female contains only an X chromosome
true
false
Gametes produced by a male may produce either an X or a Y chromosome
true
false
The outward expression of a genotype
phenotype
Genome
Heredity
Characteristics
Alternative form of a gene
allele
if a person has two alleles that are the same
homozygous
if the alleles are different
heterozygous
A domininant allele overshadows the effect of a recessive allele.
true
false
segments of DNA that contain the traits each person inheritsthe study of heredity or inheritance
Genes
The study of heredity or inheritance
genetics
A complete set of genetic information for one person
Genome
The genetic information stored at the locus of a gene, even if those traits are not expressed
genotype
In Autosomal (a) the defective allele overrides the normally functioning allele and the disorder results. In autosomal (b) disorders, the offspring must inherit two copies of the defective allele before the disorder manifests itself
Which of the following statements about sex-linked inheritance is correct?
Almost all of the sex-linked traits are carried on the X chromosome and are recessive.
Almost all of the sex-linked traits are carried on the X chromosome and are dominant
Almost all of the sex linked traits are carried on the Y chromosome and are recessive
Almost all the sex linked traits are carried on the Y chromosome and are dominant
Permanent change in genetic material
mutation
Variation
Evolution
Adaptation
Color-blindness, Hemophilia,
Duchenne’s Muscular Dystrophy are three examples of sex linked traits
true
false
affects connective tissue. most commonly affects the heart, eyes, blood vessels and skeleton. If the aorta is affected, the condition is life threatening.
Dominant disorder: Only one copy of the defective allele is needed to manifest the disease
Marfan syndrome
Sickle cell
Cystic Fibrosis
Huntington's
: causes exocrine cells produce too much thick, sticky mucus, which affects functioning in lungs and digestive system.
Recessive disorder - must inherit one copy of the defective allele from each parent.
Cystic fibrosis
Marfans disease
Huntington's
Sickle Cell Anemia
: Affects the shape of red blood cells (which carry oxygen to the body). Cells become shaped like crescent moons which impairs 02 carrying ability, and can become stiff, causing blockages.
Recessive disorder - must inherit one copy of the defective allele from each parent
Marfan syndrome
Cystic Fibrosis
Huntington's Disease
Sickle Cell Disease
: causes the progressive degeneration of nerve cells in the brain. this disease has a wide impact on a person's functional abilities and usually results in movement, cognitive and psychiatric disorders.
Dominant disorder: Only one copy of the defective allele is needed to manifest the disease
Huntington's disease
Marfan Syndrome
Sickle Cell
Cystic Fibrosis
The term used to describe when homologous chromosomes fail to separate during meiosis.
nondisjunction
normal disjunction
Which statement about sex-linked inheritance is true
Women inheriting such a trait would express a disorder
Almost all these traits are dominant
Almost all of these traits are carried on the X chromosome
Sickle cell Disease is a sex linked disorder
Most chromosomal abnormalities result when:
Homologous chromosomes separate repeatedly
Homologous chromosomes fail to separate during meiosis
An egg is fertilized by more than one sperm
A mutation occurs
