ADV 7th Benchmark Review 2-a: Question Preview (ID: 12815)


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What is the matching DNA strand to the following DNA sequence? TAGGACT
a) TAGGACT b) ATCCACT c) ATCCTGA d) GCTACTA
During sexual reproduction genetic material combines from
a) one parent b) two parents c) two offspring d) one person
Many characteristics are affected by the interactions between genes and _____
a) chromosomes b) alleles c) carriers d) the environment
A mutation in the DNA is harmful to an organism if it
a) changes the DNA of the organism b) changes the genotype of the organism c) reduces the organism's chances for survival and reproduction d) increases the organism's chances for survival and reproduction
Chromosomes are made up of
a) one pair of alleles b) many traits c) transfer RNA d) many genes joined together
The process by which the number of chromosomes is reduced in half to form sperm and eggs is called
a) mitosis b) meiosis c) alleles d) genotype
During sexual reproduction, the sperm and egg each contribute
a) one quarter of the number of chromosomes in body cells b) half the number of chromosomes in body cells c) forty six chromosomes d) two times he number of chromosomes in body cells
In a cross between a homozygous recessive (white) rabbit and a heterozygous organism (black), what is the probability that the offspring will have white hair?
a) 1 in 4 b) 2 in 4 c) 3 in 4 d) 4 in 4
Black hair is a dominant trait; White hair is recessive. What is the phenotype of an offspring that is ww?
a) white hair b) black hair c) gray hair d) it is impossible to determine
An organism with two identical alleles for a trait is
a) heterozygous b) homozygous c) recessive d) dominant
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