A) heredity B) immunity C) evolution D) differentiation
A) type and order of amino acids B) nutritional habits of the organism C) availability of starch molecules D) environment of the organism
A) differentiation B) selective breeding C) gene insertion D) cloning
A) reproductive cells composed of molecular bases B) folded chains of bonded glucose molecules C) large molecules that have only one function D) coiled strands of genetic material
A) habitat modification B) genetic engineering C) natural selection D) asexual reproduction
A) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria B) 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. C) The gene for insulin has a different sequence of molecular bases than the gene for testosterone. 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) only the DNA in certain cells will replicate C) some of the DNA in some of the cells will be removed by chemical reactions 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) fertilization → meiosis → mitosis B) meiosis → fertilization → mitosis C) fertilization → mitosis → meiosis D) mitosis → fertilization → meiosis
A) mitotic cell division B) recombination C) zygote formation D) meiotic cell division
A) the need to adapt and maintain homeostasis B) sorting and recombining of genes in meiosis C) overproduction of offspring and competition D) replication and cloning
A) mated only with panthers from Texas B) produced more reproductive cells than the male panthers in Texas C) solved the reproductive problems of the species by asexual methods D) increased the genetic variability of the panther population in Florida
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) mitosis to produce a larger population B) meiosis to produce gametes C) fusion of eggs and sperm to produce zygotes D) internal fertilization to produce an embryo
A) oranges without seeds, only B) oranges and other kinds of fruit C) oranges with seeds, only D) a majority of oranges with seeds and only a few oranges without seeds
A) It is not affected by conditions outside the embryo. 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 father. D) It is affected primarily by the eating habits and general health of the mother.
A) As an embryo develops, various tissues and organs are produced. B) Offspring have a combination of genes from both parents. C) Replicated chromosomes separate during gamete formation. D) The cells produced by a zygote usually have different genes.
A) a dog named Samantha and how she helps her owner overcome obstacles B) the strange effects mannequins can have on people 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) are usually beneficial to the organism B) cannot be passed on to offspring C) lead to more serious mutations in 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 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) 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) make fertilization impossible B) affect the production of eggs C) decrease her ability to provide essential nutrients to an embryo D) make carrying a fetus impossible
A) progesterone B) estrogen C) placenta D) ovary
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) causing mutations in the bacteria B) engulfing (devouring) and digesting the bacteria whole C) inserting part of their DNA into the bacterial cells 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) hijacks cells into making more viruses leaving the host defenseless to disease C) automatically causes AIDS D) provides immediate immunity to other diseases |