STAAR WARM up 2
Authored by Kabreena Attaway
Science
9th - 12th Grade
Used 2+ times
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11 questions
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1.
MATCH QUESTION
1 min • 1 pt
Diploid
A single set of chromosomes found only in gametes
Genotype
An alternate form of a gene
Phenotype
The genetic make-up of an organism
Haploid
A full set of chromosomes found in somatic cells
Allele
The physical traits of an organism
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In Holstein cattle their coats can be a solid color or spotted. A spotted coat is due to a recessive gene while a solid coat color is dominant. If two spotted cattle were crossed, what phenotypic results would be expected?
All spotted offspring
All solid offspring
50% spotted offspring: 50% solid offspring
75% solid offspring: 25% spotted offspring
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Punnett squares are a tool that are used to predict genotypes of future offspring. Which Punnett squares correctly show crosses between two parents who are heterozygous for given traits?
Select TWO correct answers.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In Mendel’s pea plants, plant height is controlled by a single gene in which the tall allele is dominant to the short allele. Which of the parental genotypes would produce 75% tall pea plants and 25% short pea plants?
TT x Tt
TT x tt
Tt x Tt
Tt x tt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Crossing over between non-sister chromatids during meiosis is significant in heredity. This process most likely leads to an increase in which of the following?
The expression of dominant traits
Number of gametes
The occurrence of polyploidy
Genetic variation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tomato plants usually have hairy stems. Hairless stems are present in tomato plants that are homozygous recessive for the trait. If the stem characteristics are determined by a single gene, what is the expected outcome of crossing two tomato plants that are heterozygous for hairy stems?
75% hairy stems: 25% hairless stems
100% hairy stems
100% hairless stems
50% hairy stems: 50% hairless stems
7.
MATCH QUESTION
1 min • 1 pt
Nucleus
The site of transcription in eukaryotes
Mutation
The process in which mRNA is read to determine the order of amino acids in the protein
Transcription
A change in the DNA sequence
Translation
The process in which a segment of DNA is copied into a message known as mRNA
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