Question 1

What trait did the parent pea plants Mendel use that made his experiments possible?

Accepted Answer

A) They were self-pollinating. 
B) They were all homozygous dominant. 
C) They were all homozygous recessive. 
D) They were all heterozygous. 
E) More than one of these traits made Mendel's experiments possiblE. 
A) They were self-pollinating. 
B) They were all homozygous dominant. 
C) They were all homozygous recessive. 
D) They were all heterozygous. 
E) More than one of these traits made Mendel's experiments possiblE. A

Question 2

Which of the following was unknown during Mendel's time?

Accepted Answer

A) the structure of DNA 
B) mitosis and meiosis 
C) genes and chromosomes 
D) the structure of nucleotides 
E) none of these were known about in Mendel's time 
A) the structure of DNA 
B) mitosis and meiosis 
C) genes and chromosomes 
D) the structure of nucleotides 
E) none of these were known about in Mendel's time E

Question 3

If both alleles are expressed in the heterozygote,the condition is called ______.

Accepted Answer

co-dominance

Question 4

The result of polygenic inheritance is

Accepted Answer

A) continuous variation around a mean. 
B) all heterozygous genotypes. 
C) phenotypes that are distinct from each other. 
D) novel phenotypic variations. 
A) continuous variation around a mean. 
B) all heterozygous genotypes. 
C) phenotypes that are distinct from each other. 
D) novel phenotypic variations.

Question 5

In sesame plants,the one pod condition (P)is dominant to the three pod condition (p).A cross between PP and Pp would result in a 1:1 ratio of one pod to three in the offspring.

Accepted Answer

A) True 
 B)False

Question 6

A pea plant received a dominant allele for flower color from one of its parents and a dominant allele for flower color from its other parent.The phenotype of this pea plant is

Accepted Answer

A) homozygous recessive 
B) heterozygous 
C) homozygous dominant 
D) undetermined 
A) homozygous recessive 
B) heterozygous 
C) homozygous dominant 
D) undetermined

Question 7

_______ is the molecule which carries genetic information from the DNA to the ribosomes.

Accepted Answer

The answer of _______ is the molecule which carries genetic...

Question 8

In Mendelian genetic crosses,a(n)_____ allele is only expressed in the homozygous condition.

Accepted Answer

A) recessive 
B) dominant 
C) homozygous 
D) heterozygous 
A) recessive 
B) dominant 
C) homozygous 
D) heterozygous

Question 9

A cross between two F1 pink dahlia yields plants with 9 varieties of flower color.This is an example of

Accepted Answer

A) complete dominance. 
B) incomplete dominance. 
C) co-dominance. 
D) polygenic inheritance. 
E) linkagE. 
A) complete dominance. 
B) incomplete dominance. 
C) co-dominance. 
D) polygenic inheritance. 
E) linkagE.

Question 10

In pea plants,the smooth seed trait is dominant to the wrinkled seed trait and the green pod trait is dominate to the yellow pod trait.If a pea plant that is homozygous dominant for both traits is crossed with a pea plant that is homozygous recessive for both traits what will be the expected genotypes of the offspring of this cross?

Accepted Answer

A) homozygous dominate for both traits 
B) heterozygous for both traits 
C) ½ homozygous dominant and ½ homozygous recessive 
D) ¼ homozygous dominant;½ heterozygous;¼ homozygous recessive 
E) ¾ heterozygous and ¼ homozygous dominant 
A) homozygous dominate for both traits 
B) heterozygous for both traits 
C) ½ homozygous dominant and ½ homozygous recessive 
D) ¼ homozygous dominant;½ heterozygous;¼ homozygous recessive 
E) ¾ heterozygous and ¼ homozygous dominant

Question 11

In a cross between a heterozygous smooth-seeded (Ss)plant and a homozygous wrinkled-seeded (ss)plant,what would be the expected phenotypes of the offspring?

Accepted Answer

A) all smooth 
B) all wrinkled 
C) 3/4 smooth:1/4 wrinkled 
D) half smooth: half wrinkled 
A) all smooth 
B) all wrinkled 
C) 3/4 smooth:1/4 wrinkled 
D) half smooth: half wrinkled

Question 12

Which of the following could be an RNA codon?

Accepted Answer

A) TAT 
B) CGT 
C) AAC 
D) GAT 
E) all of the above 
A) TAT 
B) CGT 
C) AAC 
D) GAT 
E) all of the above

Question 13

A cross between pure- breeding red carnations and pure-breeding white carnations yields all pink carnations.This is an example of

Accepted Answer

A) complete dominance. 
B) incomplete dominance. 
C) co-dominance. 
D) polygenic inheritance. 
E) linkagE. 
A) complete dominance. 
B) incomplete dominance. 
C) co-dominance. 
D) polygenic inheritance. 
E) linkagE.

Question 14

Mendel's principle of segregation relates directly to an event that occurs in _______ of meiosis.

Accepted Answer

A) Prophase I 
B) Anaphase I 
C) Metaphase I 
D) Prophase II 
E) Anaphase II 
A) Prophase I 
B) Anaphase I 
C) Metaphase I 
D) Prophase II 
E) Anaphase II

Question 15

Linked genes

Accepted Answer

A) tend to be inherited together. 
B) do not segregate from each other in meiosis. 
C) do not assort independently. 
D) do all of these 
A) tend to be inherited together. 
B) do not segregate from each other in meiosis. 
C) do not assort independently. 
D) do all of these

Question 16

Alternative forms of the same gene are called

Accepted Answer

A) loci 
B) homologous 
C) heterozygous 
D) alleles 
A) loci 
B) homologous 
C) heterozygous 
D) alleles

Question 17

What was the immediate fate of Mendel's 1865 publication of his pea plant experiments?

Accepted Answer

A) He received universal praise and the science of genetics was born. 
B) It was immediately condemned as anti-religious and banned by the Catholic Church. 
C) He was accused of fraud and fudging his data. 
D) It was mostly ignored for over 30 years. 
A) He received universal praise and the science of genetics was born. 
B) It was immediately condemned as anti-religious and banned by the Catholic Church. 
C) He was accused of fraud and fudging his data. 
D) It was mostly ignored for over 30 years.

Question 18

A protein composed of 50 amino acids would be coded for by the exon of a gene _______ bases long.

Accepted Answer

The answer of A protein composed of 50 amino acids...

Question 19

Approximately 99.9% of the human genome consists of genes,DNA that codes for proteins.

Accepted Answer

A) True 
 B)False

Question 20

If a portion of a DNA molecule being transcribed is ATCCGATGA,then the complementary portion of mRNA would read:

Accepted Answer

A) ATCCGATGA 
B) TAGGCTACT 
C) UAGGCUACU 
D) AUCCGAUGA 
E) GCAATGCAG. 
A) ATCCGATGA 
B) TAGGCTACT 
C) UAGGCUACU 
D) AUCCGAUGA 
E) GCAATGCAG.

Exam 7: Genetics

What trait did the parent pea plants Mendel use that made his experiments possible?

Which of the following was unknown during Mendel's time?

If both alleles are expressed in the heterozygote,the condition is called ______.

The result of polygenic inheritance is

In sesame plants,the one pod condition (P)is dominant to the three pod condition (p).A cross between PP and Pp would result in a 1:1 ratio of one pod to three in the offspring.

A pea plant received a dominant allele for flower color from one of its parents and a dominant allele for flower color from its other parent.The phenotype of this pea plant is

_______ is the molecule which carries genetic information from the DNA to the ribosomes.

In Mendelian genetic crosses,a(n)_____ allele is only expressed in the homozygous condition.

A cross between two F1 pink dahlia yields plants with 9 varieties of flower color.This is an example of

In a cross between a heterozygous smooth-seeded (Ss)plant and a homozygous wrinkled-seeded (ss)plant,what would be the expected phenotypes of the offspring?

Which of the following could be an RNA codon?

A cross between pure- breeding red carnations and pure-breeding white carnations yields all pink carnations.This is an example of

Mendel's principle of segregation relates directly to an event that occurs in _______ of meiosis.

Linked genes

Alternative forms of the same gene are called

What was the immediate fate of Mendel's 1865 publication of his pea plant experiments?

A protein composed of 50 amino acids would be coded for by the exon of a gene _______ bases long.

Approximately 99.9% of the human genome consists of genes,DNA that codes for proteins.

If a portion of a DNA molecule being transcribed is ATCCGATGA,then the complementary portion of mRNA would read:

Plants in Our Lives

The Plant Cell

The Plant Body

Plant Physiology

Plant Life Cycle: Flowers

Plant Life Cycle: Fruits and Seeds

Plant Systematics and Evolution

Diversity of Plant Life

Human Nutrition

Origins of Agriculture

The Grasses

Legumes

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Feeding a Hungry World

Stimulating Beverages

Herbs and Spices

Materials: Cloth, Wood, and Paper

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Psychoactive Plants

Poisonous and Allergy Plants

The Algae

Fungi in the Natural Environment

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Fungi That Affect Human Health

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