T or F?
Genetic segregation implies that the members of the allele pair determining each trait are distributed to different gametes during mitosis.
F
T or F?
Y chromosomes contain far more genes than X chromosomes.
F
T or F?
A diagram of human relatives with specific genetic traits is called pedigree
T
T or F?
The term lethal dominant gene indicates that the gene causes death only when the individual is homozygous dominant
F
T or F?
Is it possible for a baby to have type O blood if neither parent type O?
T
Steven has the dominant tongue rolling phenotype, but he does not know his genotype. His wife has the recessive non-tongue rolling trait. if their son cannot roll his tongue this means?
Steven has a heterozygous genotype
Of the different sources of genetic variability, which one causes the variation in the combinations of homologs from paternal and maternal linage found within a haploid cell?
independent assortment
The cleft chins trait follows a dominant recessive inheritance pattern with the cleft chin being the dominant trait. John is heterozygous for Cleft chin as is his wife Betty. John and Betty have two kids both have cleft chins. According to Punnett square prediction what is the likely hood that their next child will have a cleft chin?
75% chance, the same probability for all of their children
The epigenetic mark that silences the expression of a gene is …. Bound to the DNA or histone proteins.
A methyl group
Of the different sources of genetic variability, which one could be defined as permanent, transmissible changes to the DNA coding sequence often caused by outside environmental factors?
mutation
What is the most common type of fetal testing?
Amniocentesis
CRISPR-Cas9 refers to a
Technique used to change and edit sequences of DNA
The gene responsible for the condition known as sickle cell anemia demonstrates
Incomplete dominance
Recessive alleles are best defined as
And allele only expressed when the allele is homozygous
A couple whose blood types are AB and B may have a child with which of the following blood types
A, B, and AB only
Mitochondrial DNA is inherited from who
Only the mother
A dominant allele is best to find as
A allele that stops or hide the expression of another allele
The reason recessive genetic orders are more frequent than dominant genetic orders is that
Carriers are not eliminated by the disease before passing the defective alleles onto it offspring
Select a statement that best describes a difference between a gene and allele
Gene express a specific trait while alleles are variations of particular gene that result in the variation we see in that tree
a homozygous trait means
The person has two identical alleles for the gene impossible for the trait
Hemophilia is an x-linked condition caused by reused gene
Sperm move to the uterine tube through uterine contractions and the energy of their own flagella. What other factor is involved in sperm movement
Reverse peristalsis of the uterus and uterine tubes
The placenta is made up of contribution from mother and fetus. Which portion is the fetus
Chorion
Derivatives of the endoderm include
Epithelial lining of the respiratory tract
