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Exam (elaborations)

DAT Biology Practice Exam Questions and Answers | Latest Update

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  • DAT Biology

Where is antidiuretic hormone stored in the body? A. Thyroid B. Pancreas C. Pineal gland D. Posterior pituitary E. Anterior pituitary D An otherwise healthy mother who consumes insufficient dietary vitamin B has four offspring that all produce insufficient growth hormone. What is the most...

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  • September 26, 2024
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  • 2024/2025
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  • DAT Biology
  • DAT Biology
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2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!

DAT Biology Practice Exam Questions
and Answers | Latest Update
Where is antidiuretic hormone stored in the body?


A. Thyroid


B. Pancreas


C. Pineal gland


D. Posterior pituitary


E. Anterior pituitary


✓ D




An otherwise healthy mother who consumes insufficient dietary vitamin B has four offspring

that all produce insufficient growth hormone. What is the most likely connection?


A. Epistatic link


B. Polygenic link


C. Common pleiotropic allele


D. Epigenetic link


E. No link, it was random


✓ D




1 | P a g e | G r a d e A + | 2 0 0 2 5

,2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
Which of the following transports minerals through the plant?


A. Xylem


B. Guard cells


C. Cytokinins


D. Ground tissue


E. Phloem


✓ A




Which of the following organisms has a predominantly haploid lifecycle?


A. Mollusca


B. Ferns


C. Chordata


D. Fungi


E. Annelids


✓ D




If a zebra is 2n = 18 and a horse is 2n = 24, what is the genetic makeup of the hybrid

offspring?


A. 2n = 18

1 | P a g e | G r a d e A + | 2 0 0 2 5

,2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
B. 2n = 21


C. 2n = 22


D. 2n = 24


✓ B




Antibiotic resistant bacteria colony A is left to sit on an agar plate. After some time, bacteria

colony A is removed and antibiotic susceptible bacteria colony B is added to the plate.

Bacteria colony B gains antibiotic resistance while sitting on the plate. What phenomenon

best describes what has occurred?


A. Transduction


B. Conjugation


C. Transformation


D. Mutation


E. Translation


✓ C




All of the following are secondary messengers used in signal transduction EXCEPT one.

Which is the EXCEPTION?


A. Cyclic AMP


B. Diacylglycerol

1 | P a g e | G r a d e A + | 2 0 0 2 5

, 2024/ 2025 | © copyright | This work may not be copied for profit gain Excel!
C. Inostiol triphosphate


D. Calcium


E. GTP


✓ E




What part of the developing blastocyst contributes to the placenta?


A. Inner cell mass


B. Trophoblast


C. Ectoderm


D. Blastocoel


E. Epiblast


✓ B




A species exhibits a type I survivorship curve. What is another characteristic that is true of

this species?


A. High carrying capacity


B. Large amount of offspring


C. Short lifespan


D. Quick maturation period

1 | P a g e | G r a d e A + | 2 0 0 2 5

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