Q: What map shows the locations of several genes on the x chromosome? Read this paragraph and choose the correct option from the provided answers: Linkage Map for the Human X Chromosome. This linkage map shows the locations of several genes on the X chromosome. Some of the genes code for normal proteins. Others code for abnormal proteins that lead to genetic disorders. Which pair of genes would you expect to have a lower frequency of crossing-over: the genes that code for hemophilia A and G6PD deficiency, or the genes that code for protan and Xm?. Choices: - The genomic map - the component map - The allelic map - the linkage map A:
the linkage map

(Question)
Q: What gas do the lungs give up as they take in oxygen? Read this paragraph and choose the correct option from the provided answers: Pulmonary circulation is the part of the circulatory system that carries blood between the heart and lungs (the term "pulmonary" means "of the lungs"). It is illustrated in Figure below . Deoxygenated blood leaves the right ventricle through pulmonary arteries, which transport it to the lungs. In the lungs, the blood gives up carbon dioxide and picks up oxygen. The oxygenated blood then returns to the left atrium of the heart through pulmonary veins. Choices: - carbon monoxide - methane - nitrogen - carbon dioxide A:
(Answer)
carbon dioxide

Ques: Q: What diagram is used to reflect evolutionary relationships among organisms or groups of organisms? Read this paragraph and choose the correct option from the provided answers: Classification and Phylogeny Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and relationships between organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms. The hierarchical classification of groups nested within more inclusive groups is reflected in diagrams. Scientists consider phylogenetic trees to be a hypothesis of the evolutionary past because one cannot go back through time to confirm the proposed relationships. Unlike with a taxonomic classification, a phylogenetic tree can be read like a map of evolutionary history, as shown in Figure 12.4. Shared characteristics are used to construct phylogenetic trees. The point where a split occurs in a tree, called a branch point, represents where a single lineage evolved into distinct new ones. Many phylogenetic trees have a single branch point at the base representing a common ancestor of all the branches in the tree. Scientists call such trees rooted, which means there is a single ancestral taxon at the base of a phylogenetic tree to which all organisms represented in the diagram descend from. When two lineages stem from the same branch point, they are called sister taxa, for example the two species of orangutans. A branch point with more than two groups illustrates a situation for which scientists have not definitively determined relationships. An example is illustrated by the three branches leading to the gorilla subspecies; their exact relationships are not yet understood. It is important to note that sister taxa share an ancestor, which does not mean that one taxon evolved from the other. The branch point, or split, represents a common ancestor that existed in the past, but that no longer exists. Humans did not evolve from chimpanzees (nor did chimpanzees evolve from humans) although they are our closest living relatives. Both humans and chimpanzees evolved from a common ancestor that lived, scientists believe, six million years ago and looked... Choices: - relationships tree - conceptual tree - biodiversity tree - phylogenetic tree A:
Ans: phylogenetic tree

(Q).
Q: What happens when turgid cells in a nonwoody tissue push against each other? Read this paragraph and choose the correct option from the provided answers: Choices: - the tissue dies - the tissue melts - the tissues merge - the tissue stiffens A:
(A).
the tissue stiffens

Ques:Q: What is the general name for saturated hydrocarbons? Read this paragraph and choose the correct option from the provided answers: Saturated hydrocarbons are given the general name of alkanes . The name of specific alkanes always ends in - ane . The first part of the name indicates how many carbon atoms each molecule of the alkane has. The smallest alkane is methane. It has just one carbon atom. The next largest is ethane, with two carbon atoms. The chemical formulas and properties of methane, ethane, and several other alkanes are listed in Table below . The boiling and melting points of alkanes are determined mainly by the number of carbon atoms they have. Alkanes with more carbon atoms generally have higher boiling and melting points. Choices: - petrolatums - enzymes - halides - alkanes A:

Ans:alkanes

Question: Q: What involves the emission of a particle and/or energy as one atom changes into another? Read this paragraph and choose the correct option from the provided answers: Radioactive decay involves the emission of a particle and/or energy as one atom changes into another. In most instances, the atom changes its identity to become a new element. There are four different types of emissions that occur. Choices: - spontaneous mutation - atomic transformation - enthalpy - radioactive decay A:
Answer:
radioactive decay