ATI TEAS Science

Correct Answer: B

Rationale: The correct answer is B (50%). When an A heterozygote (IAi) individual and an O (ii) individual have a child, the possible genotypes of the offspring are IAi (A blood type) and ii (O blood type). Since A and O blood types are determined by codominant and recessive alleles respectively, the child has a 50% chance of inheriting the A allele from the A heterozygote parent, resulting in A blood type. Therefore, the probability of the child having A blood type is 50%. Choice A (25%) is incorrect because it does not consider the possibility of the child inheriting the A allele from the A heterozygote parent. Choice C (75%) and choice D (100%) are incorrect as they overestimate the probability by not accounting for the presence of the O allele in the O parent, which would result in the child having O blood type.

Correct Answer: D

Rationale: The correct answer is D: Arteries. Arteries carry oxygen-rich blood away from the heart to the body tissues. They have thick, muscular walls to withstand the high pressure of blood pumped from the heart. Veins (A) carry oxygen-poor blood back to the heart. Intestines (B) are part of the digestive system, and bronchioles (C) are small air passages in the lungs.

Correct Answer: A

Rationale: The correct answer is A: They're both accurate and precise. Rationale: 1. Accuracy: The measurements are close to the accepted value of 9.8 m/s^2, with a range of 9.78-9.81 m/s^2. 2. Precision: The measurements are consistent and clustered closely around the true value, indicating precision. 3. The slight variations in measurements are expected due to experimental error but still fall within an acceptable range. In summary, the measurements are accurate as they are close to the true value, and they are precise as they are clustered closely together. Other choices are incorrect because they do not accurately reflect the situation based on the provided data.

Correct Answer: D

Rationale: Certainly! The correct answer is D because synergists assist primary movers (A), stabilize the point of origin while providing extra pull near the insertion (B), and help prevent unwanted movement at a joint (C). Synergists work together with the primary mover to facilitate smooth and efficient movement. Option A explains how synergists assist the primary movers in completing specific movements by adding force. Option B highlights the role of synergists in stabilizing the origin and providing additional force near the insertion point. Option C emphasizes that synergists help to stabilize the joint, preventing unnecessary movements and ensuring proper execution of the desired motion. Therefore, all the options (A, B, and C) collectively describe the functions of synergists, making option D the correct choice.

Correct Answer: A

Rationale: The correct answer is A: DNA mutation. An alteration in the normal gene sequence is referred to as a mutation, which can result from changes in the DNA sequence. Mutations can lead to variations in genetic information. Gene migration (B) refers to the movement of genes between populations. Polygenic inheritance (C) involves the contribution of multiple genes to a trait. Incomplete dominance (D) is a genetic pattern where the phenotype of a heterozygous individual is intermediate between the two homozygous phenotypes.