1. Topic: Final Exam Review Aim: Let’s review reproduction and genetics
Topic: Final Exam Review Aim: Let’s review reproduction and genetics. Do Now: Let’s go over our Energy and Waves exam. HW: Final Exam Review Ditto – Physical Science

2. The hydra shown below is reproducing asexually
The hydra shown below is reproducing asexually. What percentage of the offspring’s genetic information is the same as the genetic information of the parent? (1) 25% (2) 75% (3) 50% (4) 100%

3. A plant produces tiny plants around the edges of its leaves
A plant produces tiny plants around the edges of its leaves. When these tiny plants fall to the ground, they take root and become new plants. This process is an example of (1) sexual reproduction (2) asexual reproduction (3) evolution (4) extinction

4. Asexually produced offspring are genetically (1) identical to the parent (2) different from the parent (3) different from each other (4) formed by two parents

5. Some one-celled organisms can reproduce by the process of
hormone secretion
(2) fertilization
(3) metamorphosis
(4) cell division

6. A broken bone heals through the process of
adaptation
(2) cell division
(3) mutation
(4) chemical digestion

7. Cancer is best described as (1) a type of genetic engineering (2) the merging of sex cells (3) abnormal cell division (4) tissue that stops growing

8. In animal skin tissue, cell division is responsible for (1) growth and repair (2) sexual reproduction (3) obtaining energy (4) production of sex cells

9. The series of diagrams below shows a single-celled organism and its offspring that resulted from cell division over a period of 20 hours. If the organisms continue to reproduce asexually at this same rate, how many organisms will there be after 30 hours? (1) 6 (2) 8 (3) 7 (4) 16

10. Naturally occurring variations within a species are mainly the result of mutations and (1) sexual reproduction (2) dynamic equilibrium (3) metabolism (4) camouflage

11. The diagram below shows information about the
reproduction and development of a rabbit.
Which letter in the diagram represents fertilization? A B
(3) C
(4) D

12. The diagram shows four stages in the development of a human after fertilization. Between stages A and D, which process must occur? (1) mutation (3) cell division (2) sexual reproduction (4) extinction

13. Which sequence of development is correct
Which sequence of development is correct? (1) fertilized egg → tissues → organ systems → organs (2) fertilized egg → organ systems → organs → tissues (3) fertilized egg → organs → tissues → organ systems (4) fertilized egg → tissues → organs → organ systems

14. Which sequence represents the order of development for many plants
Which sequence represents the order of development for many plants? (1) seed develops inside fruit → seed is dispersed → seed germinates → plant grows (2) seed is dispersed → seed develops inside fruit → seed germinates → plant grows (3) seed germinates → plant grows → seed is dispersed → seed develops inside fruit (4) seed is dispersed → plant grows → seed germinates → seed develops inside fruit

15. Which statement describes a method of sexual reproduction that occurs in plants? (1) Stem cuttings are placed in water and grow roots. (2) Seeds are produced from the flower of the plant. (3) Underground stems from a plant grow into new plants. (4) A leaf falls to the soil, develops roots, and grows.

16. The diagram below shows a cross section of a bean seed
The diagram below shows a cross section of a bean seed. The function of part X in the bean seed is to (1) provide protection for the embryo (2) provide nutrients for the embryo (3) prevent mutations in the plant (4) fight off infections in the plant.

17. When do organs and organ systems begin to develop in humans?
before fertilization
(2) during childhood
(2) before birth
(4) during adulthood

18. What are produced in both the male and female reproductive systems in humans?
sperm
(2) fertilized eggs
(3) nutrients
(4) sex cells

19. During which process does a caterpillar become a butterfly
During which process does a caterpillar become a butterfly? (1) fertilization (2) metamorphosis (3) asexual reproduction (4) biological adaptation

20. Which process is represented by the diagram below
Which process is represented by the diagram below? (1) asexual reproduction (2) ecological succession (3) photosynthesis (4) metamorphosis

21. Young frogs do not resemble adult frogs
Young frogs do not resemble adult frogs. Which term is given to this pattern of development in frogs? (1) asexual reproduction (2) cloning (3) metamorphosis (4) biological adaptation

22. In living things, traits are passed on from one generation to the next by the transfer of
blood
(2) Calories
(3) minerals
(4) DNA

23. Which process involves choosing certain organisms to reproduce with one another in order to pass on specific, desirable traits to their offspring? (1) selective breeding (2) asexual reproduction (3) resource acquisition (4) natural selection

24. A Punnett square is shown below. The dominant trait is represented by R. The recessive trait is represented by r. What percentage of the offspring will most likely show the dominant trait? (1) 25% (2) 75% (3) 50% (4) 100%

25. Many cells have a nucleus that contains chromosomes
Many cells have a nucleus that contains chromosomes. These chromosomes carry genes that are composed of (1) hormones (2) DNA molecules (3) minerals and water (4) undigested food molecules

26. What model is used to show the pattern of traits that are passed from one generation to the next in a family? (1) pedigree chart (2) dichotomous key (3) energy pyramid (4) line graph

27. What are genes composed of?
offspring
(2) cells
(3) DNA
(4) traits

28. An organism is born with a genetic abnormality not present in any of its ancestors. This abnormality is most likely the result of
circulation
(2) mutation
(3) competition
(4) respiration

29. In humans, a trait can be determined by one pair or many pairs of
genes
(2) cells
(3) microbes
(4) organs

30. The drawing below represents a pair of chromosomes
The drawing below represents a pair of chromosomes. The area labeled “bands” shows the location of (1) egg cells (2) sperm cells (3) reproductive hormones (4) specific genes

31. Compared to the amount of hereditary information in a human body cell, how much hereditary information is contained in a human sex cell? (1) one-quarter the amount (2) one-half the amount (3) the same amount (4) twice the amount

32. Base your answers to questions 34 through 36 on the diagram below and on your knowledge of science. The diagram shows a model of human inheritance. What is this model used to determine? (1) the possibility of having twins (2) the probability of a trait being passed on (3) the rate of mutation (4) the production of sex cells

33. What is the genetic makeup of the parents?
AA and aa (2) AA and AA
(3) Aa and Aa (4) aa and aa

34. Why will Aa individuals have a straight hairline rather than a peaked hairline? (1) The peaked hairline occurs only in females. (2) The peaked hairline is a mutation. (3) The straight hairline is recessive. (4) The straight hairline is dominant.

35. A scientist crosses two different varieties of corn to produce a single variety that has traits from both parents. This technique is an example of (1) competition (2) natural selection (3) selective breeding (4) ecological succession

36. A research team wanted to produce a smaller
variety of German shepherd dogs. They mated
the smallest dogs from different litters for
several generations. This is an example of which
concept?
extinction
(2) selective breeding
(3) mutation
(4) natural selection