Register
Question 1
In a classical Mendelian monohybrid cross between two heterozygous tall pea plants (Tt x Tt), where tall (T) is completely dominant over dwarf (t), what is the expected phenotypic ratio among the offspring?
Correct Answer:
3 tall : 1 dwarf (75% tall, 25% dwarf)
Question 2
Two dihybrid individuals with independent, non-linked genes (AaBb x AaBb) are crossed. Assuming complete dominance for both traits, what is the theoretical probability of obtaining an offspring displaying the dominant phenotype for the first gene and the recessive phenotype for the second gene ([A-bb])?
Correct Answer:
3/16 (18.75%)
Question 3
A testcross is performed between a heterozygous female Drosophila with linked genes in coupling phase (AB/ab) and a double homozygous recessive male (ab/ab). The cross yields 1000 total offspring: 420 [AB], 420 [ab], 80 [Ab], and 80 [aB]. What is the genetic map distance between loci A and B?
Correct Answer:
16 centimorgans (cM)
Question 4
Hemophilia A is an X-linked recessive bleeding disorder. A phenotypically normal woman whose father was hemophilic marries a healthy, non-hemophilic man. What is the probability that their first son will be affected by hemophilia?
Correct Answer:
50% (0.50)
Question 5
During DNA replication in eukaryotic cells, which enzyme is responsible for unwinding the double helix at the replication fork by breaking hydrogen bonds between complementary base pairs?
Correct Answer:
DNA Helicase
Question 1
Exam overview

About this Exam

Prepare with the Bac D Bénin Practice Questions - Baccalauréat Série D (Biologie - Géologie) - Bénin Exam practice quiz. This question bank includes 100 questions covering probability, solution, acid, sequence, and human. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

Bac D Bénin Practice Questions - Baccalauréat Série D (Biologie - Géologie) - Bénin Exam

This practice set contains 100 questions from the matching question bank and focuses on probability, solution, acid, sequence, and human. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions

Abitur Biology Practice Questions - German Abitur Biology (Biologie) for the Allgemeine Hochschulreife Exam

0 min

Berlin Abitur Biology LK Practice Questions - Berlin Abitur Biology - advanced course Leistungsfach (Leistungskurs Biologie) Exam

0 min

Bremen Abitur Biology Practice Questions - Bremen Abitur Biology - landeseinheitliche schriftliche Prüfung (Leistungskurs and Grundkurs Biologie) Exam

0 min

BW Abitur Biology Bilingual EN Practice Questions - Baden-Württemberg Abitur Biology Bilingual English (Biologie bilingual englisch, Internationales Abitur Baden-Württemberg pathway) exam with Exam

0 min

EXETAT Chimie-Biologie Practice Questions - Examen d'État - Option Chimie-Biologie (DR Congo) Exam

0 min

Facharzt FMH Hals-Nasen-Ohren Practice Questions - Facharzt FMH für Oto-Rhino-Laryngologie Spécialiste FMH en oto-rhino-laryngologie Exam

0 min