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