حل ورقة عمل Inheritance العلوم المتكاملة الصف السادس

حل ورقة عمل Inheritance العلوم المتكاملة الصف السادس

1) Which of the following is NOT an example of a trait?
A) eye color
B) ear shape
C) species
D) body height

2) Bird A has the genotype ll for bill length, and Bird B is LL. The bills of their offspring would be:

A) long in 100% of the offspring.
B) short in 100% of the offspring.
C) long in 50% of the offspring.
D) short in 75% of the offspring.

3) A child looks more like one parent than the other because a child only inherits
chromosomes from one parent.
True
False

4) The study of ____ is called genetics.
A) heredity
B) dominance
C) pea plants
D) mutations

5) …………………..Passing of traits from parents to offspring is .

6) A florist has one kind of plant that usually has red flowers (the dominant trait), but
sometimes has white flowers (the recessive trait). If she crosses plants A and B as shown here, 50% of the offspring will have red flowers.

True
False

7) A heterozygous orange-flowered plant is crossed with a homozygous purple-flowered plant. If orange is a dominant allele and purple is recessive, what color ratio will the flowers of the offspring plants have?

A) 1 purple: 3 orange
B) 4 purple: 0 orange
C) 2 purple: 2 orange
D) 0 purple: 4 orange

8) What model can be used to show traits and help determine genotypes of genetically
related family members over several generations?
A) Punnett square
B) pedigree
C) ratio
D) phenotype

9) A scientist crossed two fruit flies in a lab. She was studying the transmission of the alleles that affect wing shape. The dominant allele, C, is the allele for curly wings, and the recessive allele, c, is the allele for straight wings. She knew that one of the parent flies was heterozygous and had curly wings (Cc). Half of the offspring from the cross had curly wings, and the other half had straight wings. Identify the genotype and phenotype of the second parent fly. State the evidence that supports your response.