Alleles carry the codes for producing which of these types of large molecules?

A scientist crossed a white-flowered plant with a blue-flowered plant. Which of these outcomes would show that blue flower color is dominant to white flower color?

A scientist crosses a rabbit with short fur and a rabbit with long fur. Which of these outcomes would show that the trait for fur length is an example of incomplete dominance?

A botanist crosses a pea plant that produces smooth seeds with a pea plant that produces wrinkled seeds. The resulting plants all produce smooth seeds. What can be determined from the results of the experiment?

The diagram shows several structures located within a cell. Which statement best describes the relationship among the structures?

The diagram shows a cross that is similar to one of Mendel’s pea plant crosses. What is the dominant phenotype of the offspring in the cross shown?

Look at the diagram shown. The alleles for the parents are missing. The parents in the diagram have which of these alleles?

Carrie is studying the genes of two fruit flies in her lab. She knows what alleles they have. She wants to know the potential combinations of alleles their offspring could inherit. Which of these would help Carrie identify the potential combinations?

Which of these choices describes a segment of DNA that determines a specific trait in a person, such as attached earlobes?

The different forms of characteristics are called ______.

Mendel crossed two parent plants. What does this mean?

When Mendel crossed the purple-flowered and white-flowered plants, all first generation plants had purple flowers. Mendel called this the _______ trait.

When Mendel crossed the purple-flowered and white-flowered plants, the white-flower trait seemed to recede or fade away. Mendel called this the ______ trait.

____ contains instructions that determine an organism's traits and coordinate the growth and development of an organism.

DNA is organized into structures called ______.

A ____ is a segment of DNA located on chromosomes of cells.

Each individual has ______.

Each individual has _______.

Each parent contributes ____ set(s) of genes to its offspring.

The different gene forms are called _____.

Alleles carry the codes for producing various _____, which are large molecules that do much of the work in a cell and also make up much of the cell's structure.

A molecule of DNA is shaped like a twisted ladder, a shape that is called _____.

The instructions of DNA are coded in specific sequences of _______.

Changes in a section of DNA are known as ______.

Mutations might have a beneficial or harmful outcome.

All traits are passed on from parent to offspring.

Traits such as the ability to ride a bike are ____.

Traits such as hair dyed blue is _____.

______ is the passing of genes from parents to offspring.

When offspring inherit all of their genes from one parent, the offspring is ____ to the parent.

When two parents contribute genetic material to the offspring, the offspring are genetically ______ as well as each other.

A _______ is a model used to predict the possible genotypes of offspring in a given cross.

Each square of a punnett square shows a possible _____ combination for potential offspring.

Punnett squares give exact genotypes for the offspring of a cross.

_______ is the mathematical chance of a specific outcome in relation to the total number of possible outcomes.

A _____ is an expression that compares two quantities.

DNA is made up of chemical compounds called ______.

Which of the following create a nucleotide?

The amount of adenine in a nucleotide is equal to the amount of ______.

The amount of guanine in a nucleotide is equal to the amount of ______.

Which of these organisms can reproduce by budding? 

Which of these lists includes three types of asexual reproduction? 

Look at the diagram of sexual reproduction. Which of these statements correctly describes the genetic information in the diagram?

Which of these choices describes a zygote?

Which type of reproduction involves two parents and results in offspring that are not genetically identical to either parent? 

Which of these statements correctly describes one way that asexual and sexual reproduction are different?

Which of these statements is true for organisms that reproduce asexually?

Which type of cell division is a part of asexual reproduction?

Marmosets usually give birth to fraternal twins, two offspring that grow from two different fertilized eggs. Marmoset twins are genetically _______.

What advantage does the white-faced marmoset gain by its method of reproduction?

What is the process by which organisms generate a new individual of the same species?

In which type of reproduction is a single individual the parent?

In _____ reproduction, the offspring are genetically identical to the parent unless gene mutations occur.

Most unicellular organisms reproduce _____.

_______ reproduction allows an organism to reproduce quickly and can produce a large number of offspring in a short period of time.

In which type of reproduction are there two parents?

Most multicellular organisms reproduce _____, including plants and animals.

_______ reproduction usually takes more time and produces fewer offspring.

_____ reproduction increases genetic variation, which increases the chance that some offspring will have new traits that will help them survive a changing environment.

Some organisms can reproduce sexually and asexually.

A bud begins to grow on an adult's body and eventually breaks off from the adult. What time of reproduction is this?

What type of reproduction results in two unicellular organisms that are genetically identical to the parent?

Having offspring that are genetically ______ the parent ensures that any favorable traits that the parent has are passed on to the offspring.

Sexual reproduction requires two parents. Each parent produces ______, or sex cells.

Gametes have ____ the total number of chromosomes, one copy of each chromosome.

During sexual reproduction, a sperm cell and an egg join in a process called _______.

A new genetically different cell formed during fertilization is called a ______.

Scientists can classify plants into two major groups based on reproductive structures of the plants. What are these two groups called? 

Many plants can reproduce asexually. Which of these is an example of asexual reproduction in a plant?

Where would you expect to see seedless plants, such as ferns and mosses? 

Henry designs an experiment to find out why plants without flowers tend to be wind-pollinated and not animal-pollinated. He takes samples from a variety of plants and studies them in the field. He finds that the evidence supports his hypothesis. Which of these was the hypothesis Henry was testing?

The table shows characteristics of two plants, Plant A and Plant B. What plant could be a spruce tree?

The chart describes several different parts of flowering plants. Which of these gives the correct labels for columns A, B, and C?

Which type of plant makes up the largest group in the Plantae kingdom?

Many cacti are adapted to live in dry habitats that have very little shade. Which of these environmental factors might be harmful to the growth of a cactus?

Which of these statements best describes what happens during vegetative reproduction?

How do flowering plants contribute to the reproductive success of the plant?

All plants can reproduce sexually.

A _____ of a seedless plant is a tiny structure that is dispersed from the parent plant and can grow into a new plant body.

Many seedless plants live in ____ environments because a sperm from one plant must swim through water to fertilize the egg of another plant.

In seed plants, sperm are carried in a microscopic structure called _____.

In seed plants, eggs develop inside a structure called a(n) ______.

In seed plants, when pollen reaches and fertilizes an egg, ______ occurs.

In seed plants, the ovule becomes the ____, the structure that contains the embryo inside a protective coating.

______ plants can be classified as flowering or nonflowering plants.

_____ plants produce seeds that are not enclosed in a fruit.

Most nonflowering seed plants produce seeds enclosed in a structure called a ______.

______ plants produce flowers and fruit.

_____ are tiny plants that grow along the edges of a plant's leaves.

When a plant _______, pollen is transferred to the egg of the same plant.

When a plant _______, the pollen from one plant is transferred to the egg of another plant.

The _____ is a flower's male reproductive structure.

The _____ is the female reproductive structure of a flower.

______ cover and protect the flower while it is budding.

______ are often colorful and can help attract animal pollinators.

The ______ is part of the stem that supports the flower.

At the end of the pedicel is the _______, which forms the base of the flower.

The seeds of different plants may have different requirements to ______, or develop from a seed into a small plant.

Seeds can delay germination, or go ______, until conditions are right for plant growth.

Which of these is not a factor that influences animal growth? 

Which behavior most directly increases reproductive success in animals? 

Which parenting behavior does not increase the probability that offspring will survive? 

Which of these best describes successful animal behaviors? 

Which of these is a courting behavior that can increase a male’s probability of reproductive success? 

Which of these behaviors is most likely to result in an organism attracting a mate?

Heavier female black bears produce more offspring. Which statement describes a genetic factor that might negatively affect a female black bear's reproductive success?

Why are animals considered consumers?

The male midwife toad will carry the eggs he fertilized until they are ready to hatch. This male midwife toad most likely reproduces ______.

What type of behavior is shown by a pig-tail macaque grooming its offspring?

_____ reproduction is the dominant form of reproduction of animals.

When a female lays eggs and the male fertilizes them outside the female's body, fertilization is ______.

When a male and female mate and fertilization occurs inside the female's body, fertilization is _____.

______ is the ability to produce offspring that are healthy and that survive.

_____ are attempts by animals to attract mates.

_______ are attempts by animals to ensure their offspring's survival.

Growth and survival of animals depends on complex interactions between genetic and environmental factors.

A gardener wanted to grow pumpkins to show in the state fair. She planted a variety of pumpkin seeds in several locations throughout her yard. At the end of the growing season, she had some pumpkins that were small and some that were giant. Which factor could not have contributed to the variety of size between pumpkins?

Many factors can affect the growth of crops. Which of these examples describes how a genetic factor can influence the growth of crops?

In cattle, the allele for solid coat color is dominant (R) and the allele for white-spotted coat is recessive (r). A rancher crossed two cows, both solid color. What combination of genes in the solid-coat parents could result in offspring with the white-spotted phenotype?

Many plants can reproduce both sexually and asexually. For example, rose bushes reproduce asexually when cuttings planted in the ground grow roots and become a new rose bush. They can also reproduce sexually when their flowers are pollinated. What is the primary advantage of sexual reproduction in roses? 

The table gives information about the reproductive behaviors of various animals. Based on the table, which statement best describes a relationship between parental care and reproductive success?

A beautyberry is a type of shrub that grows well in the southern United States. Some students have a small beautyberry shrub that is growing near their school. They record the number of berries, ripe or unripe, and the number of flowers at different times throughout the year. Which statement best explains what is shown in their data?

Which of the following shows offspring that is genetically different from the parent?

Which of the following shows offspring that is genetically identical to the parent?

Which statements are examples of sexual reproduction? 

Which statements are examples of asexual reproduction? 

What is the advantage for strawberries of producing seeds that are attached to edible fruit? 

Which of the following are examples of asexual reproduction in plants?

The diagram shows a Punnett square for one trait. Which of these should be placed in the box with the question mark? 

Examine the Punnett square. Which of these choices gives the alleles of the parents shown in the Punnett square?

A pea plant with round seeds is crossed with a pea plant with wrinkled seeds. The figure shows the results of this cross. What can be concluded about wrinkled seeds?

Vegetative propagation is a form of asexual reproduction because it does not involve _____.

Vegetative propagation is an efficient method of reproduction because the species can reproduce even when ______.

Asexual reproduction does not give the species a chance to __________, which is disadvantageous.

Which alleles belong in the red square?

Which alleles belong in the black square?

Which alleles belong in the blue square?

What letter(s) belong in the blue square?

What letter(s) belong in the black square?

What letter(s) belong in the red square?

A species of plant has one gene for berry color that can produce either blue or purple berries. The allele B for blue-colored berries is dominant over the allele b for purple-colored berries. Two heterozygous plants with blue berries are crossed. What percentage of offspring will have the genotype BB?

A species of plant has one gene for berry color that can produce either blue or purple berries. The allele B for blue-colored berries is dominant over the allele b for purple-colored berries. Two heterozygous plants with blue berries are crossed. What percentage of offspring will have the genotype Bb?

A species of plant has one gene for berry color that can produce either blue or purple berries. The allele B for blue-colored berries is dominant over the allele b for purple-colored berries. Two heterozygous plants with blue berries are crossed.  What percentage of offspring will have the genotype bb?