A) evolution B) heredity C) immunity D) differentiation
A) nutritional habits of the organism B) type and order of amino acids C) environment of the organism D) availability of starch molecules
A) selective breeding B) gene insertion C) cloning D) differentiation
A) reproductive cells composed of molecular bases B) folded chains of bonded glucose molecules C) coiled strands of genetic material D) large molecules that have only one function
A) habitat modification B) asexual reproduction C) natural selection D) genetic engineering
A) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not B) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria C) The gene for insulin has a different sequence of molecular bases than the gene for testosterone. D) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four differentmolecular bases.
A) DNA is functional in only 10% of the cells of the body B) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other C) some of the DNA in some of the cells will be removed by chemical reactions D) only the DNA in certain cells will replicate
A) meiosis → fertilization → mitosis B) mitosis → fertilization → meiosis C) fertilization → mitosis → meiosis D) fertilization → meiosis → mitosis
A) zygote formation B) mitotic cell division C) recombination D) meiotic cell division
A) overproduction of offspring and competition B) the need to adapt and maintain homeostasis C) sorting and recombining of genes in meiosis D) replication and cloning
A) increased the genetic variability of the panther population in Florida B) solved the reproductive problems of the species by asexual methods C) produced more reproductive cells than the male panthers in Texas D) mated only with panthers from Texas
A) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring B) increased variation in the type of organelles present in the cell C) an adaptation that will be passed on to other types of cells in the body D) rapid evolution of the organism in which the cell is found
A) fusion of eggs and sperm to produce zygotes B) meiosis to produce gametes C) internal fertilization to produce an embryo D) mitosis to produce a larger population
A) oranges without seeds, only B) oranges with seeds, only C) oranges and other kinds of fruit D) a majority of oranges with seeds and only a few oranges without seeds
A) It will not be affected by any medication taken by the mother B) It is not affected by conditions outside the embryo. C) It is affected primarily by the eating habits and general health of the father. D) It is affected primarily by the eating habits and general health of the mother.
A) As an embryo develops, various tissues and organs are produced. B) Replicated chromosomes separate during gamete formation. C) Offspring have a combination of genes from both parents. D) The cells produced by a zygote usually have different genes.
A) the strange effects mannequins can have on people B) a cancer that mutates and becomes elegant and beautiful C) a dog named Samantha and how she helps her owner overcome obstacles D) a virus aimed to cure cancer that mutates and causes humans to become monster-like
A) lead to more serious mutations in offspring B) usually lead to the death of the organism C) are usually beneficial to the organism D) cannot be passed on to offspring
A) Each cell has pairs of chromosomes and the cells are usually genetically identical. B) Each cell has pairs of chromosomes and the cells are usually genetically different. C) Each cell has half the normal number of chromosomes and the cells are usually genetically identical. D) Each cell has half the normal number of chromosomes and the cells are usually genetically different.
A) synthesize the same proteins and enzymes as the entire colony is cloned from the original B) express adaptations unlike (different than) those of the other cells C) have a resistance to different antibiotics D) replicate different numbers of genes
A) decrease her ability to provide essential nutrients to an embryo B) make carrying a fetus impossible C) make fertilization impossible D) affect the production of eggs
A) progesterone B) ovary C) estrogen D) placenta
A) are easily digestable B) carry progesterone and fool the mother's body into thinking it is already pregnant C) are made up of nutrient-rich sugars D) provide plenty of testosterone for her well-being
A) inserting part of their DNA into the bacterial cells B) causing mutations in the bacteria C) producing toxins that compete with bacterial toxins D) engulfing (devouring) and digesting the bacteria whole
A) automatically causes AIDS B) provides immediate immunity to other diseases C) hijacks cells into making more viruses leaving the host defenseless to disease D) it takes a very long time to begin injecting its viral RNA code into the hosts' cells |