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