5th 6 Weeks 3 Week Test Review

By: Katherine Pease

Describe what the difference between a heterozygous and homozygous

genotypes.

• Heterozygous = 2 different alleles (Tt)• Homozygous = 2 of the same allele (TT /

tt)

• GG Bb Ff tt NN Mm Uu zz HH Pp oo BB Jj

A man who is heterozygous for the ability to roll his tongue marries a

woman who is a non-roller. Complete a punnett square to find out the

probability of their children being able to roll their tongues. R= can roll tongue

r= can not roll tongue

If brown eyes are dominant, draw a punnett square to show how two brown eyed parents can have a child with blue

eyes. Include the genotype and phenotype information.

Complete the following:

A ____ is a segment of _____ that contains information

controlling a particular trait. _______ forms chromosomes found in the _____ of a cell.

If you get hurt in the lab what is the first thing you should do?

• Tell the Teacher

Which body system transports materials to and from the body cells?

• CARDIO-VASCULAR

Which body system exchanges oxygen and carbon dioxide gases?• RESPIRATORY SYSTEM

Which body system breaks down food and absorbs digested materials?

• DIGESTIVE SYSTEM

Which body system removes wastes from blood?

• EXCRETORY SYSTEM

Which body system enables the body to move

• MUSCULAR SYSTEM

Which body system sends messages throughout the body?

• NERVOUS SYSTEM

Which body system controls many body process by means of chemicals; helps

the body maintain homeostasis?

• ENDOCRINE SYSTEM

Which body system produces offspring?

• REPRODUCTIVE SYSTEM

Which body system supports and protects the body?

• SKELETAL SYSTEM

Which body system fights disease and infection in the body?

• IMMUNE SYSTEM

Which body system protects and covers internal structures from the

outside environment?

• SKIN, INTEGRUMENTARY SYSTEM

Label each type of joint below..

• Pivot

• Gliding

• Ball and socket

• Hinge

When cutting the chicken wing you always move the scalpel, scissors

_____ from your body.

• Away

Gives shape and ____ to your body.

• support

Protects you ___ organs.

• internal

_____ are attached to bones to help them move.

• muscles

Blood cells are formed in the bone ____.

• marrow

________ and _______ are stored in the bones.

• Phosphorus

• calcium

What are internal stimuli? Give an example.

• Something that causes a reaction from with-in the body

• Example: Hunger, thirst, temperature, pain

What are external stimuli? Give an example.

• Something that causes a reaction due to your outer body surroundings.

• Example: Pain due to someone hitting you, picking up your cell phone when it rings, jump when hear a loud noise

Capital letters represent _________ alleles in a genetic

cross.• Dominant

Lower case letters represent _______ alleles in a genetic cross.

• recessive

Describe the difference between phenotype and genotype.

• Phenotype =physical appearance

• Genotype = genetic make up (2 alleles)

A cross between a blue eyed person produces four blue eyed children.

What is most likely the dominant color?

• blue

Another term for heterozygous is _________.

• hybrids

Another term for homozygous is __________.

• Purebred

The _____ is an organ in the male reproductive system that produces

gametes (sex cells) called __________.

• Testis• sperm

The _____ is an organ in the female reproductive system that produces

gametes (sex cells) called __________.

• Ovaries• Eggs (ovum)

___________ fertilization is a type of reproduction where egg cells are

fertilized by sperm outside of the body.

• external

In humans the ___ pair of chromosomes determines the sex

of the off spring. _______ chromosomes will result in a female offspring and __ will result in male

offspring.

Species Number of chromosomes in body cells (diploid)

Number of chromosomes in gametes (haploid)

Humans 46

Fruit Fly 4

Leopard Frog 26

Housefly 6

Monkey 21

Chicken 78

Describe a situation when your body experiences external stimuli and how it

would respond…

• (answers will vary)

• Flight or Fight syndrome

What is heredity?

• The genetic traits that are inherited from an organisms biological parent.

What part of the cell contains the genetic material?

• Nucleus

–Contains the chromosomes

Sequence these words from least to most complex:

Gene, cell, nucleus, chromosome

• Genes

• Chromosome

• Nucleus

• cell

• Study Hard!!!

• Must have 100% Passing for class to dissect at end of 6

weeks.

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