Science Test

5 Written Questions

1. symbol used to describe a female
2. in which the heterozygous phenotype is an intermediate phenotype between two homozygous phenotypes
3. humans have ______ pair of sex chromosomes and _______ of autosomes
4. diagram that traces the inheritance of a particular trait through several generations
5. is the DNA copied between meiosis 1 and meiosis 2

5 Matching Questions

1. 23
2. codominance
3. haploid
4. carrier
5. crossing over

1. a number of chromosomes you got from your parents
2. b both alleles are expressed in the heterozygous condition
3. c term for an individual that is heterozygous for a recessive disorder
4. d meiosis results in cells that are
5. e lengths of DNA can swap from one homologous chromosome to the other in a process called

5 Multiple Choice Questions

1. symbol used to describe males
   1. yes
   2. square
   3. gene
   4. circle
2. number of chromosomes in a human cell
   1. no
   2. 4,2
   3. 46
   4. 23
3. is the DNA copied prior to meiosis
   1. yes
   2. gene
   3. 4,2
   4. 2,1
4. general term for cells used during reproduction
   1. carrier
   2. gene
   3. yes
   4. gametes
5. types of red blood cells that a person that is heterozygous for produces
   1. homologous chromosomes
   2. normal and sickle shaped cells
   3. codominance
   4. incomplete dominance

5 True/False Questions

1. homozygous → organism that has two of the same allele for a particular trait

   True        False

2. 2,1 → meiosis involves ___ cell divisions while mitosis involves _______ cell divisions

   True        False

3. heterozygous → organism that has two different alleles for a particular gene is

   True        False

4. meiosis 1 → is the DNA copied prior to meiosis

   True        False

5. sperm,pollen → 2 examples of gametes

   True        False