16 is both genes and environmental factors
17 is to trace the inheritance of traits in humans
18 is A, C, F, J, N, and O
19 is all 23 pairs of chromosomes
20 is cystic fibrosis
16.
Which factors can affect a person’s height?
a person’s karyotype
genes only
both genes and environmental factors
a person’s blood type
17.
How does a geneticist use pedigrees?
to prove that sex-linked traits are caused by codominant alleles
to replicate identical strings of DNA
to trace the inheritance of traits in humans
to create genetic crosses
18.
Use the diagram to answer the question.
Which individuals do not exhibit the trait and are not carriers?
A, C, E, G, I, L, N, and O
B, D, F, H, J, K, M, P, and Q
A, C, F, J, N, and O
B, D, E, G, H, I, K, L, M, P, and Q
19.
Sex-linked genes are genes on _____.
the X and Y chromosomes
the X chromosome only
all 23 pairs of chromosomes
the Y chromosome only
20.
A karyotype can be used to diagnose the genetic disorder called _____.
hemophilia
sickle-cell disease
Down syndrome
cystic fibrosis
2 answers
20. No, cystic fibrosis is caused by a gene mutation. Karyotypes can detect abnormalities only in chromosome number.
19. Not the best answer.
18. No diagram
16,17 correct
19. Not the best answer.
18. No diagram
16,17 correct
1 answer