Which of the next option best discribes an homozygous recessive allele: Rr, RR, rr
rr
What type of social behaviors are present on primates?
Communicating and grooming
Albinism is a recessive genetic disorder: True or False
True
micrograph of pairs of homologous chromosomes arranged in decreasing size.
Karyotype
Cancer cells spend less time in _________(name of phase) than do normal cells.
interphase
Who is the father of genetics?
Gregor Mendel
In which phase of Meiosis I crossing over occurs?
Prophase I
Mention an example of trait
Each characteristic, such as hair color, height, or eye color, etc.
If a baby looks more like his dad, that means he has more genes of his dad than his mom. True or False
False
diagram that traces the inheritance of a particular trait through several generations.
Pedigrees
An organism wit with two different alleles for a particular trait is _______ for that trait
heterozygous
How many pairs of chromosomes are on human body cells?
23
There are only recessive genetic disorders: True or False
False
Substances and agents that are known to cause cancer.
carcinogens
Scientists believe that the first ancestors of humans are from Africa: True or False.
True
Primate that is more like humans in their physical structure and behavior.
Chimpanzees
Form of a single gene passed from generation to generation.
Allele
What is the species of humans?
Homo sapiens
Down syndrome results due to a nondisjunction leading to a trisomy: True or False
True
What is the main characteristic that distinguishes primates?
They have flexible hands and feet
Its the observable characteristic or outward expression of an allele pair.
Phenotype
Primates have large brains: True or False?
True
What are the main threats that make the primates be endangered? (at least 2)
Loss of tropical habitat, Human predation, Low reproductive rate