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The genotype of a female pea plant is SSTt. Which combinations of alleles could be present in gametes produced by this plant?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
A heterozygous plant (Ss) is crossed with a plant homozygous dominant (SS) for smooth petals. S is dominant for smooth petals, and s is recessive for wrinkled petals. What will MOST LIKELY be the petal texture of the first generation of offspring?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
In order to produce gametes with the genotypes BF, Bf, bF, and bf, what MUST the genotype of the parent be?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
Having a widow's peak is the dominant trait (W), while lacking a widow's peak is the recessive trait (w). If 100% of the offspring are heterozygous, what are the genotypes of the parents?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
Mrs. Bage started a pea farm, but only planted green peas. When these plants were crossed, they noticed that the plants produced green, yellow, and white peas during the first growing season. What is MOST LIKELY the reason for the difference?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
Tay-Sachs disease is inherited in an autosomal recessive manner. Which term is used to describe a person who has the gene for Tay-Sachs, but does not have the disease?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
Which sentence BEST expresses a main idea stated in Mendel's law of segregation?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
A fruit fly is heterozygous for both eye color and wing length (EeWw). E is dominant for yellow eyes. e is recessive for white eyes. W is dominant for long wings. w is recessive for short wings. What would be the distribution of gametes?
50% yellow eyes; 50% white eyes 50% long wings; 50% short wings
Three-fourths of the petals in the offspring will be smooth, and one-fourth will be wrinkled.
carrier
WW and WW
BbFf
Organisms inherit two copies of each gene, but donate only one copy to each gamete.
Sexual reproduction produced new combinations of alleles.
ST and St
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