← Chapter 6 Test
5 Written Questions
5 Matching Questions
- sex-linked trait
- do sex linked traits show up more in males or females?why?
- what does TT stand for?
- a TT stands for homozygous dominant and purebred dominant.
- b males because they only have one chromosme to carry the recessive allele.
- c type of organism whose ancestor are in a genetic uniform.
- d a trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosome or the Y chromosome in humans.
- e collection of all an organisms physical characteristics.
5 Multiple Choice Questions
- always a 50% chance for a girl or guy
- the liklihood of an event occuring is not influenced by the outcome of earlier events.
- - he looked at different traits by cross-pollinating the pea flowers.
- - he founded the principle of dominance that states one gene in a trait can prevent the other gene from being expressed.
- -the two genes for each trait separate when the gametes are formed.
5 True/False Questions
what is a karyotype? → all are homologous
22 pairs of autosomes and 1 pair of sex chromosomes
never mind → never mind
what is a poygenic trait? → -trait that is determined by the combinded effect of one or more genes. ex. human skin, hair, height, and eye color.
trait → organism that contains both dominant and recessive alleles.
genotype → collection of all an organisms physical characteristics.