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