A) immunity B) evolution C) differentiation D) heredity
A) environment of the organism B) availability of starch molecules C) type and order of amino acids D) nutritional habits of the organism
A) cloning B) differentiation C) gene insertion D) selective breeding
A) folded chains of bonded glucose molecules B) large molecules that have only one function C) reproductive cells composed of molecular bases D) coiled strands of genetic material
A) habitat modification B) asexual reproduction C) genetic engineering D) natural selection
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) some of the DNA in some of the cells will be removed by chemical reactions B) only the DNA in certain cells will replicate C) DNA is functional in only 10% of the cells of the body D) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other
A) mitosis → fertilization → meiosis B) fertilization → mitosis → meiosis C) meiosis → fertilization → mitosis D) fertilization → meiosis → mitosis
A) meiotic cell division B) zygote formation C) mitotic cell division D) recombination
A) sorting and recombining of genes in meiosis B) the need to adapt and maintain homeostasis C) overproduction of offspring and competition D) replication and cloning
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) increased variation in the type of organelles present in the cell B) rapid evolution of the organism in which the cell is found C) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring 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 and other kinds of fruit D) oranges with seeds, only
A) It is affected primarily by the eating habits and general health of the father. B) It will not be affected by any medication taken by the mother C) It is affected primarily by the eating habits and general health of the mother. D) It is not affected by conditions outside the embryo.
A) Offspring have a combination of genes from both parents. B) As an embryo develops, various tissues and organs are produced. C) The cells produced by a zygote usually have different genes. D) Replicated chromosomes separate during gamete formation.
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) cannot be passed on to offspring C) are usually beneficial to the organism 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 different. 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 identical.
A) have a resistance to different antibiotics B) express adaptations unlike (different than) those of the other cells C) synthesize the same proteins and enzymes as the entire colony is cloned from the original D) replicate different numbers of genes
A) make fertilization impossible B) decrease her ability to provide essential nutrients to an embryo C) affect the production of eggs D) make carrying a fetus impossible
A) progesterone B) estrogen C) ovary D) placenta
A) provide plenty of testosterone for her well-being B) are easily digestable C) are made up of nutrient-rich sugars D) carry progesterone and fool the mother's body into thinking it is already pregnant
A) engulfing (devouring) and digesting the bacteria whole B) inserting part of their DNA into the bacterial cells C) causing mutations in the bacteria D) producing toxins that compete with bacterial toxins
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 |