7.14C Genetics And Heredity MM Question Preview (ID: 41234)

7.14C.[print questions]

Traits can be classified as either dominant or recessive. The inheritance of dominant or recessive features is controlled by...
a) nuclei
b) chromosomes
c) genes
d) cells

What will happen if an organism inherits different alleles for a trait?
a) Traits will not be passed to the offspring.
b) Alleles will separate during transfer.
c) One allele may be dominant over the other.
d) An allele will be received from only one parent.

Which statement describes how traits are inherited by offspring?
a) Only the parent with the dominant allele passes the trait to the offspring.
b) An allele from each parent is passed to the offspring.
c) The alleles from each parent mix together and the offspring gets a combination of both alleles in the phenotype.
d) An allele from only one parent is passed to the offspring.

Students identified traits passed down from generation to generation in their families. Students interviewed family members and recorded traits of each generation back to their grandparents. Which tool did the students need?
a) Microscope
b) Spectroscope
c) Science journal
d) Calculator

Genetic traits are unique to each individual. Scientists can isolate information about individuals by extracting DNA. From which organelle do scientists extract DNA?
a) cytoplasm
b) nucleus
c) ribosomes
d) mitochondria

Gregor Mendel, while studying pea plants, noticed that certain traits in the pea plants were passed from parent to offspring. He concluded that each plant had a set of instruction for each trait that was passed on by each parent. Today we know...
a) traits are determined by the nucleus of the cell
b) traits are determined by inherited traits of pea plants
c) traits are determined by cell theory
d) traits are determined by genes found within chromosomes

Where in the cell is the genetic material contained?
a) vacuole
b) nucleus
c) mitochondria
d) cell membrane

An individual has brown hair, brown eyes, and attached earlobes. What type of information is stated about the person?
a) chromosomes
b) inherited traits
c) DNA description
d) cell structure

What is the significance of chromosomes?
a) They eliminate wasted from the cell.
b) They contain the organism's genetic information.
c) They produce energy for the cell.
d) They control what is allowed to enter and exit the cell.

Which best explains why siblings of the same parents can look completely different?
a) The siblings received the same chromosomes.
b) The siblings have the same genotypes but different phenotypes.
c) The siblings received different genes from the parents.
d) The siblings received the same phenotypes but have different genotypes.

What information is found in the chromosomes of the nucleus?
a) phenotypes of the organism
b) endoplasmic reticulum of the organism
c) genotypes of the organism
d) chloroplast of the organism

A science teacher uses different colored candies to represent alleles in a genetic experiment in class. One student begins to eat the candy. What is the greatest concern?
a) Weight gain
b) Ingesting an unknown chemical
c) Being distracted by the candy and not hearing instruction
d) Not being able to complete the lab because some of the materials are no longer available

Students study how genetic traits are passed down from parent to offspring. The students learn that DNA is unique to each individual organism. Students use chenille sticks and plastic beads to create a model of DNA. An advantage of this model is..
a) the materials are similar o the materials that comprise DNA
b) the DNA model is to scale
c) the size of the model is accurate
d) the double helix structure is demonstrated

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