Chapters 23-24 ECPI Bio 116 A&P 2
Questions and Correct Answers.
Genes are defined as - Answer Sequences of DNA that encode proteins
Dominant refers to the: - Answer Allele that masks the expression of another allele
Recessive refers to the: - Answer Allele expression that is masked
Humans that possess two X chromosomes are; - Answer Female
Check all that apply, The trait for eyes has 2 different alleles. Assume complete dominance and
recessiveness. Allele 1 = E for Two Small Eyes; Allele 2 = e for 1 Large Eye. The Phenotype is Two
Small Eyes. What would be the Genotype?
EE/ee/Ee - Answer EE & Ee
The Trait for Skin Color has 2 different Alleles. Assume complete dominance and recessiveness.
Allele 1 = G for Green Skin Color; Allele 2 = g for Blue Skin Color. The Phenotype is Blue. What
would be the Genotype?
GG/gg/Gg - Answer gg
The Trait for Tail Color has 2 different Alleles. Assume complete dominance and recessiveness.
Allele 1 = P for Purple; Allele 2 = p for Orange. The Genotype is Pp. What would be the
Phenotype?
Orange or Purple - Answer Purple
Check all that apply. The Trait for Tails has two Alleles. Assume complete dominance and
recessiveness. Allele 1 = T for Tail; Allele 2 = t for no Tail. The Genotype is tt. What should be the
Phenotype?
Tail or No Tail - Answer No Tail
A Genotype describes: - Answer The DNA of Individual Processes
, Codominance Occurs: - Answer When the Alleles are expressed equally
A chart displaying the Chromosomes pairs in size order is called a: - Answer Karyotype
Alternative forms (Different DNA Sequences) of Genes are called: - Answer Alleles
Homozygous means that: - Answer The Alleles for a gene are Identical
Heterozygous means that: - Answer The Alleles for a gene are not Identical
Phenotype is: - Answer The Appearance or Physical outcome of Genes
To Fertilize and Egg, Enzymes in the Sperm _______ help digest a tunnel through the Corona
Radiata: - Answer Acrosomes
The longest stage of Postnatal Life: - Answer Adulthood
Hollow Ball of Cells that Implants into the Uterus - Answer Blastocyst
This protects and cushions the Embryo during development and helps to keep a constant
temperature around the Embryo: - Answer Amniotic Fluid
Which structure of the developing Placenta help to form Blood Cells for the Embryo: - Answer
Yolk Sac and Allantois
In order to bypass the Pulmonary Trunk, the _________ allows blood to move from the Right
Atrium to the Left Atrium. - Answer Foramen Ovale
Once the Embryo has reached the point where three primary germ layer are present, the
Embryo has gone through _________? - Answer Gastrulation
Which hormones are secreted during pregnancy to maintain endometrial lining? - Answer
Estrogen and Progesterone
Where does Implantation take place in the female reproductive tract? - Answer
Endometrium
Questions and Correct Answers.
Genes are defined as - Answer Sequences of DNA that encode proteins
Dominant refers to the: - Answer Allele that masks the expression of another allele
Recessive refers to the: - Answer Allele expression that is masked
Humans that possess two X chromosomes are; - Answer Female
Check all that apply, The trait for eyes has 2 different alleles. Assume complete dominance and
recessiveness. Allele 1 = E for Two Small Eyes; Allele 2 = e for 1 Large Eye. The Phenotype is Two
Small Eyes. What would be the Genotype?
EE/ee/Ee - Answer EE & Ee
The Trait for Skin Color has 2 different Alleles. Assume complete dominance and recessiveness.
Allele 1 = G for Green Skin Color; Allele 2 = g for Blue Skin Color. The Phenotype is Blue. What
would be the Genotype?
GG/gg/Gg - Answer gg
The Trait for Tail Color has 2 different Alleles. Assume complete dominance and recessiveness.
Allele 1 = P for Purple; Allele 2 = p for Orange. The Genotype is Pp. What would be the
Phenotype?
Orange or Purple - Answer Purple
Check all that apply. The Trait for Tails has two Alleles. Assume complete dominance and
recessiveness. Allele 1 = T for Tail; Allele 2 = t for no Tail. The Genotype is tt. What should be the
Phenotype?
Tail or No Tail - Answer No Tail
A Genotype describes: - Answer The DNA of Individual Processes
, Codominance Occurs: - Answer When the Alleles are expressed equally
A chart displaying the Chromosomes pairs in size order is called a: - Answer Karyotype
Alternative forms (Different DNA Sequences) of Genes are called: - Answer Alleles
Homozygous means that: - Answer The Alleles for a gene are Identical
Heterozygous means that: - Answer The Alleles for a gene are not Identical
Phenotype is: - Answer The Appearance or Physical outcome of Genes
To Fertilize and Egg, Enzymes in the Sperm _______ help digest a tunnel through the Corona
Radiata: - Answer Acrosomes
The longest stage of Postnatal Life: - Answer Adulthood
Hollow Ball of Cells that Implants into the Uterus - Answer Blastocyst
This protects and cushions the Embryo during development and helps to keep a constant
temperature around the Embryo: - Answer Amniotic Fluid
Which structure of the developing Placenta help to form Blood Cells for the Embryo: - Answer
Yolk Sac and Allantois
In order to bypass the Pulmonary Trunk, the _________ allows blood to move from the Right
Atrium to the Left Atrium. - Answer Foramen Ovale
Once the Embryo has reached the point where three primary germ layer are present, the
Embryo has gone through _________? - Answer Gastrulation
Which hormones are secreted during pregnancy to maintain endometrial lining? - Answer
Estrogen and Progesterone
Where does Implantation take place in the female reproductive tract? - Answer
Endometrium
