FREE AND STUDY GAMES ABOUT BIOLOGY-GENETICS

PDF Download

FREE AND STUDY GAMES ABOUT BIOLOGY-GENETICS

EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -19 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: An organism with a dominant allele for a particular form of a trait will SOMETIMES show that trait

Answer:

False always Question 2: Offspring that result from crosses between true-breeding parents with different traits

Answer:

are called hybrids

Question 3: Gregor Mendel concluded that traits are

Answer:

inherited through the passing of factors from parents to offspring Question 4: If the allele for shortness in pea plants were dominant, all the pea plants in Mendel's F1 generation would have been

Answer:

short

Question 5: When Gregor Mendel crossed true-breeding tall plants with true-breeding short plants, all of the offspring were tall because

Answer:

the allele for tall plants is dominany

Question 6: Gregor Mendel used pea plants to study

Answer:

the inheritance of traits

Question 7: The different forms of a gene are called

Answer:

alleles Question 8: How many recessive alleles for a trait must an organism inherit in order to show that trait?

Answer:

2 Question 9: A cross of red cow (RR) with a white bull (WW) produces all roan offspring(RW).This type of inheritance is known as

Answer:

incomplete dominance Question 10: How many different allele combinations would be found in the gametes produced by the pea plant whose genotype was RrYY

Answer:

2

Question 11: Gregor Mendel's principles of genetics apply to

Answer:

all organisms

Question 12: The principles of probability can be used to

Answer:

predict the traits of the offspring produced by genetic crosses

Question 13: When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited

Answer:

an allele for tallness from the tall parent and an allele for shortness from the short parent Question 14: Situations in which one of the allele for a gene is not completely dominant over another allele for that gene are called

Answer:

incomplete dominance

Question 15: If you made a Punnett square showing Gregor Mendel's cross between

true-breeding tall plants and true-breeding short plants, the square would show that the offspring had

Answer:

a genotype that was different from that of both parents Question 16: Organisms that have two identical alleles for a particular trait are said to be

Answer:

homozygous Question 17: A tall plant is crossed with a short plant. If the tall F1 pea plants are allowed to self-pollinate,

Answer:

some of the offspring will be tall and some will be short

Question 18: The principle pf dominance states that

Answer:

some alleles are dominant and others are recessive

Question 19: The chemical factors that determine traits are

Answer:

genes