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