The Cause of Cystic Fibrosis 1. Cystic fibrosis is caused by a defect in a single gene. What
specifically does the gene code for?
O A. the production of mucus
B. the airways that lead to the lungs
OC. proteins that make up red blood cells
D. proteins that carry chloride ions across the cell
membrane
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How are organisms in the domain eukarya different from those in the domain archaea? o a. eukaryotes have a cell wall. o b. eukaryotes have mitochondria. o c. eukaryotes have more than one cell. o d. eukaryotes have dna. submit

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.