Which of the following tools do scientists use to cut DNAin genetic engineering? plasmids small knives DNA ligase proteases restriction enzymes

The bones of the wrist are known as: a. Phalanges b. Carpals c. Metacarpals d. Metatarsals e. None of the above Question 2 (Mandatory) (1 point) A landmark found only on the tibia is: a. Fovea capitis b. Styloid process c. Medial malleolus d. Lesser trochanter e. None of the above

A woman who is a carrier has a heterozygous genotype a woman can not be a carrier for a sex linked disorder homozygous dominant genotype homozygous recessive genotype

2. Which of the following are functions of the limestone skeleton of a coral reef? (Choose all that apply.) Provides shelter and protection for other invertebrates and sea life Protects the coral Provides a surface where algae attach and provide food for the corals Provides a home for sharks and other large fish and sea mammals

Semester 1 Review-Units 3&4 10 of 12 DNA vs RNA Questions $127-130$ on FER $\square $ is double stranded; while $\square $ is single stranded $\square $ contains thymine; while $\square $ contains uracil $\square $ contains deoxyribose;while $\square $ contains ribose $\square $ stays in the nucleus; $\square $ leaves nucleus :: ATP :: both DNA and RNA :: DNA :: RNA

18.In humans, normal color vision $(N)$ is dominant over color blindness $(n)$ A man and woman with normal color vision produced two colorblind I sons and two daughters with normal vision. Choose from the diagram the correct parental genotypes. A. $X^{N}Y$ and $X^{N}X^{N}$ B. $X^{N}Y$ and $X^{N}X^{n}$ C. $X^{n}Y$ and $X^{N}X^{N}$ D. $X^{n}Y$ and $X^{n}X^{n}$

Question 57 Which of the following does NOT describe a typical cellular response to signaling molecules? Activation of enzymes within the cell Change in the function of structural proteins, which determine cell shape Change in gene sequence that encodes a particular protein Alteration of levels of certain proteins in the cell by changing the levels of gene expression All of the above are examples of cellular responses

The physical expression of the genes. Phenotype Allele Traits Genotype

Most tasks in a cell are carried out by: a. proteins. b. carbohydrates. C. DNA. d. lipids. e. membranes.

Enzyme activity is NOT affected by temperature or pH. True False

Why are some crops genetically modified? colorful To change their shape only $\square $ To increase resistance to pests